D-Link DGS-3700-12 User manual

User Manual
Product Model: DGS-3700 Series
Layer 2 Managed Gigabit Ethernet Switch
Release 2.00

DGS-3700-12/DGS-3700-12G Series Layer 2 Gigabit Ethernet User Manual
ii
_________________________________________________________________________________
Information in this document is subject to change without notice.
© 2010 D-Link Corporation. All rights reserved.
Reproduction in any manner whatsoever without the written permission of D-Link Corporation is strictly forbidden.
Trademarks used in this text: D-Link and the D-LINK logo are trademarks of D-Link Corporation; Microsoft and Windows are registered trademarks
of Microsoft Corporation.
Other trademarks and trade names may be used in this document to refer to either the entities claiming the marks and names or their products.
D-Link Corporation disclaims any proprietary interest in trademarks and trade names other than its own.
November 2010 P/N 651GS3712025G

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Table of Contents
Intended Readers .......................................................................................................................................................11
Typographical Conventions...................................................................................................................................................... 11
Notes, Notices, and Cautions.....................................................................................................................................11
Web-based Switch Configuration...............................................................................................12
Introduction.................................................................................................................................................................12
Login to Web Manager............................................................................................................................................................. 12
Web-based User Interface....................................................................................................................................................... 13
Areas of the User Interface...................................................................................................................................................... 13
Web Pages .............................................................................................................................................................................. 14
System Configuration..................................................................................................................15
Device Information......................................................................................................................................................15
System Information Settings.......................................................................................................................................16
Dual Configuration Settings........................................................................................................................................16
Firmware Information Settings....................................................................................................................................17
Port Configuration.......................................................................................................................................................18
DDM......................................................................................................................................................................................... 18
DDM Settings........................................................................................................................................................................... 18
DDM Temperature Threshold Settings .................................................................................................................................... 19
DDM Voltage Threshold Settings............................................................................................................................................. 19
DDM Bias Current Threshold Settings..................................................................................................................................... 20
DDM Tx Power Threshold Settings.......................................................................................................................................... 21
DDM Rx Power Threshold Settings ......................................................................................................................................... 21
DDM Status Table.................................................................................................................................................................... 22
Port Settings ............................................................................................................................................................................ 22
Port Description Settings.......................................................................................................................................................... 24
Port Error Disabled .................................................................................................................................................................. 24
Jumbo Frame Settings............................................................................................................................................................. 25
Serial Port Settings.....................................................................................................................................................25
Warning Temperature Settings...................................................................................................................................26
System Log Configuration ..........................................................................................................................................26
System Log Settings................................................................................................................................................................ 26
System Log Server Settings..................................................................................................................................................... 27
System Log.............................................................................................................................................................................. 28
System Severity Settings......................................................................................................................................................... 29
Time Range Settings..................................................................................................................................................29
Time Settings..............................................................................................................................................................30
User Accounts Settings ..............................................................................................................................................30
Admin, Operator and User Privileges....................................................................................................................................... 32
Management.................................................................................................................................33

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ARP.............................................................................................................................................................................33
Static ARP Settings.................................................................................................................................................................. 33
ARP Table................................................................................................................................................................................ 34
IPv6 Neighbor Settings...............................................................................................................................................34
IP Interface..................................................................................................................................................................35
System IP Address Settings..................................................................................................................................................... 35
Setting the Switch’s IP Address using the Console Interface................................................................................................... 37
Interface Settings..................................................................................................................................................................... 37
Management Settings.................................................................................................................................................40
Out of Band Management Settings ............................................................................................................................41
Session Table.............................................................................................................................................................41
Single IP Management ...............................................................................................................................................42
The Upgrade to v1.6................................................................................................................................................................ 43
Single IP Settings..................................................................................................................................................................... 43
Topology.................................................................................................................................................................................. 44
Tool Tips.................................................................................................................................................................................. 47
Right-Click................................................................................................................................................................................ 47
Group Icon............................................................................................................................................................................... 48
Commander Switch Icon.......................................................................................................................................................... 49
Member Switch Icon ................................................................................................................................................................ 49
Candidate Switch Icon............................................................................................................................................................. 49
Menu Bar ................................................................................................................................................................................. 50
File........................................................................................................................................................................................... 50
Group....................................................................................................................................................................................... 50
Device...................................................................................................................................................................................... 50
View......................................................................................................................................................................................... 50
Help ......................................................................................................................................................................................... 50
SNMP Settings ...........................................................................................................................................................51
Traps........................................................................................................................................................................................ 51
MIBs......................................................................................................................................................................................... 52
SNMP Global Settings............................................................................................................................................................. 52
SNMP Traps Settings .............................................................................................................................................................. 52
SNMP Linkchange Traps Settings........................................................................................................................................... 52
SNMP View Table Settings...................................................................................................................................................... 53
SNMP Community Table Settings............................................................................................................................................ 54
SNMP Group Table Settings.................................................................................................................................................... 54
SNMP Engine ID Settings........................................................................................................................................................ 55
SNMP User Table Settings...................................................................................................................................................... 56
SNMP Host Table Settings ...................................................................................................................................................... 57
SNMP v6Host Table Settings................................................................................................................................................... 57
RMON Settings........................................................................................................................................................................ 58
Telnet Settings............................................................................................................................................................59
Web Settings ..............................................................................................................................................................59

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L2 Features...................................................................................................................................60
VLAN...........................................................................................................................................................................60
Understanding IEEE 802.1p Priority ........................................................................................................................................ 60
VLAN Description..................................................................................................................................................................... 60
Notes About VLANs................................................................................................................................................................. 61
IEEE 802.1Q VLANs................................................................................................................................................................ 61
802.1Q VLAN Tags.................................................................................................................................................................. 62
Port VLAN ID ........................................................................................................................................................................... 64
Tagging and Untagging............................................................................................................................................................ 64
Ingress Filtering ....................................................................................................................................................................... 64
Default VLAN........................................................................................................................................................................... 65
Port-based VLANs................................................................................................................................................................... 65
VLAN Segmentation ................................................................................................................................................................ 65
VLAN and Trunk Groups.......................................................................................................................................................... 66
Double VLANs ......................................................................................................................................................................... 66
Regulations for Double VLANs ................................................................................................................................................ 67
802.1Q VLAN Settings............................................................................................................................................................. 68
802.1v Protocol VLAN.............................................................................................................................................................. 72
802.1v Protocol Group Settings............................................................................................................................................... 72
802.1v Protocol VLAN Settings................................................................................................................................................ 72
GVRP....................................................................................................................................................................................... 73
GVRP Global Settings ............................................................................................................................................................. 74
GVRP Port Settings................................................................................................................................................................. 74
MAC-based VLAN Settings...................................................................................................................................................... 75
PVID Auto Assign Settings....................................................................................................................................................... 76
Subnet VLAN........................................................................................................................................................................... 76
Subnet VLAN Settings............................................................................................................................................................. 76
VLAN Precedence Settings...................................................................................................................................................... 77
VLAN Counter Settings............................................................................................................................................................ 78
Voice VLAN.............................................................................................................................................................................. 79
Voice VLAN Global Settings .................................................................................................................................................... 79
Voice VLAN Port Settings........................................................................................................................................................ 80
Voice VLAN OUI Settings ........................................................................................................................................................ 80
Voice VLAN Device.................................................................................................................................................................. 81
Browse VLAN........................................................................................................................................................................... 81
Show VLAN Ports.................................................................................................................................................................... 82
Q-in-Q.........................................................................................................................................................................82
Q-in-Q Settings........................................................................................................................................................................ 82
VLAN Translation Settings....................................................................................................................................................... 83
Q-in-Q and VLAN Translation Rules........................................................................................................................................ 84
Layer 2 Protocol Tunneling Setttings..........................................................................................................................85
Spanning Tree ............................................................................................................................................................85
STP Bridge Global Settings ..................................................................................................................................................... 87

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STP Port Settings .................................................................................................................................................................... 89
MST Configuration Identification.............................................................................................................................................. 91
STP Instance Settings ............................................................................................................................................................. 92
MSTP Port Information ............................................................................................................................................................ 93
Link Aggregation.........................................................................................................................................................94
Port Trunking Settings ............................................................................................................................................................. 94
LACP Port Settings.................................................................................................................................................................. 96
FDB.............................................................................................................................................................................97
Static FDB Settings.................................................................................................................................................................. 97
Unicast Static FDB Settings..................................................................................................................................................... 97
Multicast Static FDB Settings................................................................................................................................................... 98
MAC Notification Settings ........................................................................................................................................................ 99
MAC Address Aging Time Settings........................................................................................................................................ 100
MAC Address Table............................................................................................................................................................... 101
ARP and FDB Table .............................................................................................................................................................. 102
L2 Multicast Control..................................................................................................................................................103
IGMP Snooping...................................................................................................................................................................... 103
IGMP Snooping Settings........................................................................................................................................................ 103
IGMP Snooping Rate Limit Settings....................................................................................................................................... 105
IGMP Snooping Static Group Settings................................................................................................................................... 106
IGMP Router Port .................................................................................................................................................................. 106
IGMP Snooping Group........................................................................................................................................................... 107
IGMP Snooping Forwarding Table......................................................................................................................................... 108
IGMP Snooping Counter........................................................................................................................................................ 108
IGMP Host Table ................................................................................................................................................................... 109
MLD Snooping....................................................................................................................................................................... 110
MLD Control Messages ......................................................................................................................................................... 110
MLD Snooping Settings......................................................................................................................................................... 110
MLD Snooping Rate Limit Settings........................................................................................................................................ 112
MLD Snooping Static Group Settings .................................................................................................................................... 113
MLD Router Port.................................................................................................................................................................... 114
MLD Snooping Group............................................................................................................................................................ 114
MLD Snooping Forwarding Table .......................................................................................................................................... 115
MLD Snooping Counter ......................................................................................................................................................... 115
MLD Host Table..................................................................................................................................................................... 116
Multicast VLAN ...................................................................................................................................................................... 116
IGMP Multicast Group Profile Settings................................................................................................................................... 116
IGMP Snooping Multicast VLAN Settings.............................................................................................................................. 117
MLD Multicast Group Profile Settings.................................................................................................................................... 118
MLD Snooping Multicast VLAN Settings................................................................................................................................ 119
Multicast Filtering......................................................................................................................................................120
IPv4 Multicast Filtering........................................................................................................................................................... 120
IPv4 Multicast Profile Settings................................................................................................................................................ 120
IPv4 Limited Multicast Range Settings................................................................................................................................... 121

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IPv4 Max Multicast Group Settings........................................................................................................................................ 122
IPv6 Multicast Filtering........................................................................................................................................................... 122
IPv6 Multicast Profile Settings................................................................................................................................................ 122
IPv6 Limited Multicast Range Settings................................................................................................................................... 123
IPv6 Max Multicast Group Settings........................................................................................................................................ 124
Multicast Filtering Mode......................................................................................................................................................... 125
ERPS Settings..........................................................................................................................................................126
ERPS Sub-Ring Settings....................................................................................................................................................... 129
Local Loopback Ports Settings.................................................................................................................................130
LLDP.........................................................................................................................................................................130
LLDP...................................................................................................................................................................................... 130
LLDP Global Settings............................................................................................................................................................. 131
LLDP Port Settings ................................................................................................................................................................ 132
LLDP Management Address List ........................................................................................................................................... 133
LLDP Basic TLVs Settings..................................................................................................................................................... 133
LLDP Dot1 TLVs Settings...................................................................................................................................................... 134
LLDP Dot3 TLVs Settings...................................................................................................................................................... 135
LLDP Statistics System.......................................................................................................................................................... 136
LLDP Local Port Information.................................................................................................................................................. 136
LLDP Remote Port Information.............................................................................................................................................. 139
LLDP-MED............................................................................................................................................................................. 139
LLDP-MED System Settings.................................................................................................................................................. 139
LLDP-MEP Port Settings........................................................................................................................................................ 140
LLDP-MED Local Port Information......................................................................................................................................... 141
LLDP-MED Remote Port Information..................................................................................................................................... 141
L3 Features.................................................................................................................................142
IPv4 Static/Default Route Settings ...........................................................................................................................142
IPv4 Route Table......................................................................................................................................................144
IPv6 Static/Default Route Settings ...........................................................................................................................144
IPv6 Route Table......................................................................................................................................................145
IP Forwarding Table .................................................................................................................................................145
QoS .............................................................................................................................................147
Advantages of QoS................................................................................................................................................................ 147
Understanding QoS ............................................................................................................................................................... 149
802.1p Settings.........................................................................................................................................................150
802.1p Default Priority Settings.............................................................................................................................................. 150
802.1p User Priority Settings ................................................................................................................................................. 151
802.1p Map Settings.............................................................................................................................................................. 152
Bandwidth Control ....................................................................................................................................................153
Bandwidth Control Settings.................................................................................................................................................... 153
Queue Bandwidth Control Settings........................................................................................................................................ 154
Traffic Control Settings .............................................................................................................................................155
DSCP........................................................................................................................................................................157

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DSCP Trust Settings.............................................................................................................................................................. 157
DSCP Map Settings............................................................................................................................................................... 158
HOL Blocking Prevention..........................................................................................................................................158
Scheduling Settings..................................................................................................................................................159
QoS Scheduling Settings....................................................................................................................................................... 159
QoS Scheduling Mechanism.................................................................................................................................................. 160
Management Packet Priority Settings ......................................................................................................................160
SRED........................................................................................................................................................................161
SRED Settings....................................................................................................................................................................... 161
SRED Drop Counter .............................................................................................................................................................. 162
ACL .............................................................................................................................................163
ACL Configuration Wizard........................................................................................................................................163
Access Profile List ....................................................................................................................................................164
CPU Access Profile List............................................................................................................................................180
ACL Finder................................................................................................................................................................192
ACL Flow Meter........................................................................................................................................................192
Security.......................................................................................................................................195
802.1X.......................................................................................................................................................................196
802.1X Port-Based and Host-Based Access Control............................................................................................................. 196
Authentication Server............................................................................................................................................................. 196
Authenticator.......................................................................................................................................................................... 197
Client...................................................................................................................................................................................... 198
Authentication Process.......................................................................................................................................................... 198
Understanding 802.1X Port-based and Host-based Network Access Control........................................................................ 199
Port-Based Network Access Control...................................................................................................................................... 199
Host-Based Network Access Control..................................................................................................................................... 200
802.1X Global Settings.......................................................................................................................................................... 200
802.1X Port Settings.............................................................................................................................................................. 201
802.1X User Settings............................................................................................................................................................. 202
Guest VLAN Settings............................................................................................................................................................. 203
Limitations Using the Guest VLAN......................................................................................................................................... 203
RADIUS ....................................................................................................................................................................204
Authentication RADIUS Server Settings................................................................................................................................ 204
RADIUS Accounting Settings................................................................................................................................................. 205
RADIUS Authentication.......................................................................................................................................................... 206
RADIUS Account Client......................................................................................................................................................... 207
IP-MAC-Port Binding (IMPB)....................................................................................................................................208
IMPB Global Settings............................................................................................................................................................. 208
IMPB Port Settings................................................................................................................................................................. 209
IMPB Entry Settings............................................................................................................................................................... 211
MAC Block List....................................................................................................................................................................... 212
DHCP Snooping..................................................................................................................................................................... 212
DHCP Snooping Maximum Entry Settings............................................................................................................................. 212

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DHCP Snooping Entry........................................................................................................................................................... 213
ND Snoop .............................................................................................................................................................................. 213
ND Snoop Maximum Entry Settings....................................................................................................................................... 213
ND Snoop Entry..................................................................................................................................................................... 214
MAC-based Access Control......................................................................................................................................214
Notes about MAC-based Access Control............................................................................................................................... 214
MAC-based Access Control Settings..................................................................................................................................... 215
MAC-based Access Control Local Settings............................................................................................................................ 216
MAC-based Access Control Authentication ........................................................................................................................... 217
Web-based Access Control (WAC) ..........................................................................................................................218
Conditions and Limitations..................................................................................................................................................... 219
WAC Global Settings ............................................................................................................................................................. 220
WAC User Settings................................................................................................................................................................ 220
WAC Port Settings................................................................................................................................................................. 221
WAC Authentication State...................................................................................................................................................... 222
Compound Authentication ........................................................................................................................................223
Any (MAC, 802.1X or WAC) Mode......................................................................................................................................... 223
802.1X & IMPB Mode ............................................................................................................................................................ 224
Compound Authentication Settings........................................................................................................................................ 224
Compound Authentication Guest VLAN Settings................................................................................................................... 225
Port Security .............................................................................................................................................................226
Port Security Settings ............................................................................................................................................................ 226
Port Security VLAN Settings.................................................................................................................................................. 227
Port Security Entries.............................................................................................................................................................. 227
BPDU Attack Protection Settings .............................................................................................................................228
Loopback Detection Settings....................................................................................................................................229
Traffic Segmentation Settings...................................................................................................................................230
NetBIOS Filtering Settings........................................................................................................................................230
DHCP Server Screening...........................................................................................................................................231
DHCP Server Screening Port Settings................................................................................................................................... 231
DHCP Offer Permit Entry Settings......................................................................................................................................... 232
Access Authentication Control..................................................................................................................................233
Enable Admin......................................................................................................................................................................... 234
Authentication Policy Settings................................................................................................................................................ 234
Application Authentication Settings........................................................................................................................................ 235
Authentication Server Group Settings.................................................................................................................................... 235
Authentication Server Settings............................................................................................................................................... 237
Login Method Lists Settings................................................................................................................................................... 238
Enable Method Lists Settings................................................................................................................................................. 239
Local Enable Password Settings............................................................................................................................................ 240
SSL Settings.............................................................................................................................................................240
Download Certificate.............................................................................................................................................................. 241
Ciphersuite............................................................................................................................................................................. 241

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SSH...........................................................................................................................................................................243
SSH Settings.......................................................................................................................................................................... 243
SSH Authentication Method and Algorithm Settings.............................................................................................................. 244
SSH User Authentication List................................................................................................................................................. 245
Trusted Host Settings...............................................................................................................................................246
Safeguard Engine Settings.......................................................................................................................................247
Network Application ..................................................................................................................250
DHCP........................................................................................................................................................................250
DHCP Relay........................................................................................................................................................................... 250
DHCP Relay Global Settings ................................................................................................................................................. 250
The Implementation of DHCP Information Option 82 on the Switch ...................................................................................... 252
DHCP Relay Interface Settings.............................................................................................................................................. 253
DHCP Relay Option 60 Server Settings................................................................................................................................. 253
DHCP Relay Option 60 Settings............................................................................................................................................ 254
DHCP Relay Option 61 Default Settings................................................................................................................................ 254
DHCP Server......................................................................................................................................................................... 255
DHCP Server Global Settings................................................................................................................................................ 255
DHCP Server Exclude Address Settings................................................................................................................................ 257
DHCP Server Pool Settings................................................................................................................................................... 257
DHCP Server Manual Binding................................................................................................................................................ 259
DHCP Server Dynamic Binding ............................................................................................................................................. 259
DHCP Conflict IP ................................................................................................................................................................... 260
DHCP Local Relay Settings................................................................................................................................................... 260
DHCPv6 Relay....................................................................................................................................................................... 260
DHCPv6 Relay Global Settings.............................................................................................................................................. 260
DHCPv6 Relay Settings......................................................................................................................................................... 261
DNS ..........................................................................................................................................................................262
DNS Relay............................................................................................................................................................................. 262
DNS Relay Global Settings.................................................................................................................................................... 262
DNS Relay Static Settings ..................................................................................................................................................... 263
SNTP ........................................................................................................................................................................263
SNTP Settings ....................................................................................................................................................................... 263
Time Zone Settings................................................................................................................................................................ 265
OAM ............................................................................................................................................267
CFM..........................................................................................................................................................................267
CFM Settings......................................................................................................................................................................... 269
CFM Port Settings.................................................................................................................................................................. 274
CFM Loopback Settings......................................................................................................................................................... 275
CFM Linktrace Settings.......................................................................................................................................................... 276
CFM Packet Counter ............................................................................................................................................................. 277
CFM Fault Table.................................................................................................................................................................... 277
CFM MP Table....................................................................................................................................................................... 277
Ethernet OAM...........................................................................................................................................................278

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Ethernet OAM Settings.......................................................................................................................................................... 278
Ethernet OAM Configuration Settings.................................................................................................................................... 279
Ethernet OAM Event Log....................................................................................................................................................... 280
Ethernet OAM Statistics......................................................................................................................................................... 280
DULD Settings..........................................................................................................................................................281
Cable Diagnostics.....................................................................................................................................................281
Monitoring ..................................................................................................................................282
Utilization ..................................................................................................................................................................282
CPU Utilization....................................................................................................................................................................... 282
DRAM & Flash Utilization....................................................................................................................................................... 283
Port Utilization........................................................................................................................................................................ 283
Statistics....................................................................................................................................................................284
Port Statistics......................................................................................................................................................................... 284
Packets.................................................................................................................................................................................. 284
Received (RX)........................................................................................................................................................................ 284
UMB_cast (RX)...................................................................................................................................................................... 285
Transmitted (TX).................................................................................................................................................................... 287
Errors..................................................................................................................................................................................... 289
Received (RX)........................................................................................................................................................................ 289
Transmitted (TX).................................................................................................................................................................... 291
Packet Size............................................................................................................................................................................ 293
VLAN Counter Statistics ........................................................................................................................................................ 294
Historical Counter & Utilization............................................................................................................................................... 295
Historical Counter .................................................................................................................................................................. 295
Historical Utilization................................................................................................................................................................ 296
Mirror.........................................................................................................................................................................296
Port Mirror.............................................................................................................................................................................. 296
RSPAN Settings..................................................................................................................................................................... 297
sFlow.........................................................................................................................................................................298
sFlow Global Settings............................................................................................................................................................ 298
sFlow Analyzer Server Settings............................................................................................................................................. 298
sFlow Flow Sampler Settings................................................................................................................................................. 299
sFlow Counter Poller Settings................................................................................................................................................ 300
Ping Test...................................................................................................................................................................300
Trace Route..............................................................................................................................................................301
Peripheral..................................................................................................................................................................302
Device Environment............................................................................................................................................................... 302
External Alarm Settings ......................................................................................................................................................... 302
Save and Tools...........................................................................................................................303
Save Configuration ID 1............................................................................................................................................303
Save Configuration ID 2............................................................................................................................................303
Save Log...................................................................................................................................................................304
Save All.....................................................................................................................................................................304

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Configuration File Backup & Restore .......................................................................................................................305
Upload Log File.........................................................................................................................................................306
Reset.........................................................................................................................................................................306
Download Firmware..................................................................................................................................................307
Reboot System .........................................................................................................................................................307
Mitigating ARP Spoofing Attacks Using Packet Content ACL...............................................308
System Log Entries ...................................................................................................................316
Glossary......................................................................................................................................327
Password Recovery Procedure................................................................................................329

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Intended Readers
The DGS-3700 Series User Manual contains information for setup and management of the Switch. This manual is
intended for network managers familiar with network management concepts and terminology.
Typographical Conventions
Convention Description
[ ] In a command line, square brackets indicate an optional entry. For example: [copy
filename] means that optionally you can type copy followed by the name of the file. Do not
type the brackets.
Bold font Indicates a button, a toolbar icon, menu, or menu item. For example: Open the File menu
and choose Cancel. Used for emphasis. May also indicate system messages or prompts
appearing on your screen. For example: You have mail. Bold font is also used to
represent filenames, program names and commands. For example: use the copy
command.
Boldface Typewriter
Font Indicates commands and responses to prompts that must be typed exactly as printed in
the manual.
Initial capital letter Indicates a window name. Names of keys on the keyboard have initial capitals. For
example: Click Enter.
Italics Indicates a window name or a field. Also can indicate a variables or parameter that is
replaced with an appropriate word or string. For example: type filename means that you
should type the actual filename instead of the word shown in italic.
Window Name >
Window Option Window Name > Window Option Indicates the window structure. System Configuration > Port Configuration > Port Settingsmeans the Port Settings window
option under the Port Configuration folder that is located in the System Configuration
folder.
Notes, Notices, and Cautions
A NOTE indicates important information that helps you make better use of your device.
A NOTICE indicates either potential damage to hardware or loss of data and tells you
how to avoid the problem.
A CAUTION indicates a potential for property damage, personal injury, or death.

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Section 1
Web-based Switch Configuration
Introduction
Login to Web Manager
Web-based User Interface
Web Pages
Introduction
All software functions of the Switch can be managed, configured and monitored via the embedded Web-based
(HTML) interface. The Switch can be managed from remote stations anywhere on the network through a standard
browser such as Mozilla Firefox or Microsoft Internet Explorer. The browser acts as a universal access tool and can
communicate directly with the Switch using the HTTP protocol.
The Web-based management module and the Console program (and Telnet) are different ways to access the same
internal switching software and configure it. Thus, all settings encountered in Web-based management are the same
as those found in the console program.
Login to Web Manager
To begin managing the Switch, simply run the browser you have installed on your computer and point it to the IP
address you have defined for the device. The URL in the address bar should read something like:
http://123.123.123.123, where the numbers 123 represent the IP address of the Switch.
NOTE: The Factory default IP address for the Switch is 10.90.90.90.
This opens the management module's user authentication window, as seen below.
Figure 1- 1 Enter Network Password dialog
As there is no default User Name or Password,click OK. This will open the Web-based user interface. The Switch
management features available in the Web-based manager are explained below.

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Web-based User Interface
The user interface provides access to various Switch configuration and management windows, allows you to view
performance statistics, and permits you to graphically monitor the system status.
Areas of the User Interface
The figure below shows the user interface. It is divided into three distinct areas as described in the table.
Figure 1- 2 Main Web Manager window
Area Function
Area 1 Select the folder or window to be displayed. The folder icons can be opened to display the hyper-
linked window buttons and subfolders contained within them.
Area 2 Presents a graphical near real-time image of the front panel of the Switch. This area displays the
Switch's ports and expansion modules, showing port activity, duplex mode, or flow control,
depending on the specified mode.
Click the D-Link logo in the upper left corner to go to the D-Link W
ebsite for updates and
information.
Various areas of the graphic can be selected for performing management functions, including port
configuration.
Area 3 Presents switch information based on your selection and the entry of configuration data.
Area 1
Area 2
Area 3

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NOTICE: Any changes made to the Switch configuration during the
current session must be saved in the Save Changes window (explained
below) or use the command line interface (CLI) command save.
Web Pages
When you connect to the management mode of the Switch with a web browser, a login window is displayed. Enter a
user name and password to access the Switch's management mode.
Below is a list and description of the main folders and windows available in the Web interface:
System Configuration – System Information Settings, Dual Configuration Settings, Firmware Information Settings,
Port Configuration, Serial Port Settings, Warning Temperature Settings, System Log Configuration, Time Range
Settings, Time Settings, and User Accounts Settings.
Management – ARP, IPv6 Neighbor Settings, IP Interace, Management Settings, Out of Band Management
Settings, Session Table, Single IP Management, SNMP Settings, Telnet Settings, and Web Settings.
L2 Features – VLAN, QinQ, Layer 2 Protocol Tunneling Settings, Spanning Tree, Link Aggregation, FDB, L2
Multicast Control, ERPS Settings, Local Loopback Port Settings, and LLDP
L3 Features – IPv4 Static/Default Route Settings, IPv4 Route Table, IPv6 Static Default Route Settings, IPv6 Route
Table, and IP Forwarding Table.
QoS – 802.1p Settings, Bandwidth Control, Traffic Control Settings, DSCP, HOL Blocking Prevention, Sceduling
Settings, Management Packet Priority Settings, and SRED.
ACL – ACL Configuration Wizard, Access Profile List, CPU Access Profile List, ACL Finder, and ACL Flow Meter.
Security – 802.1X, RADIUS, IP-MAC-Port Binding (MPB), MAC-based Access Control, Web-based Access Control
(WAC), Compound Authentication, Port Security, BPDU Attack Protection, Loopback Detection Settings, Traffic
Segmentation Settings, NetBIOS Filtering Settings, DHCP Server Screening, Access Authentication Control, SSL
Settings, SSH, Trusted Host Settings, and Safeguard Engine Settings.
Network Application – DHCP, DNS, and SNTP Settings.
OAM – CFM, Ethernet OAM, DULD Settings, and Cable Diagnostics.
Monitoring – Utilization, Statistics, Mirror, sFlow, Ping Test, Trace Route, and Peripheral.
NOTE: Be sure to configure the user name and password in the User
Accounts window before connecting the Switch to the greater network.

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Section 2
System Configuration
Device Information
System Information Settings
Dual Configuration Settings
Firmware Information Settings
Port Configuration
Serial Port Settings
Warning Temperature Settings
System Log Configuration
Time Range Settings
Time Settings
User Accounts Settings
Device Information
This window contains the main settings for all major functions on the Switch and appears automatically when you log
on. To return to the Device Information window, click the DGS-3700-12/DGS-3700-12G Web Management Tool
folder. This window shows the Switch’s MAC Address (assigned by the factory and unchangeable), the Boot PROM
Version, Firmware Version, Hardware Version and Serial Number as well as other information about different settings
on the Switch. This information is helpful to keep track of PROM and firmware updates and to obtain the Switch's MAC
address for entry into another network device's address table, if necessary. In addition, this window displays the status
of functions on the Switch to quickly assess their current global status. Some functions are hyper-linked to their
configuration window for easy access from the Device Information window.
Figure 2- 1 Device Information window

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System Information Settings
This window contains the System Information details. The user may enter a System Name, System Location and
System Contact to aid in defining the Switch, to the user's preference. This window displays the MAC Address,
Firmware Version and Hardware Version.
To view this window, click System Configuration >System Information Settings,as shown below:
Figure 2- 2 System Information Settings window
The fields that can be configured are described below:
Parameter Description
System Name Enter a system name for the Switch, if so desired. This name will identify it in the Switch
network.
System Location Enter the location of the Switch, if so desired.
System Contact Enter a contact name for the Switch, if so desired.
Click Apply to implement changes made.
Dual Configuration Settings
The following window is used to configure firmware information set in the Switch. The DGS-3700 Series has the
capability to store two firmware images in its memory.
To access this window, click System Configuration >Dual Configuration Settings, as shown below:
Figure 2- 3 Dual Configuration Settings window
This window displays the following information:
Parameter Description
ID States the ID number of the configuration file located in the Switch’s memory. The Switch can

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store two configuration files for use. ID 1 will be the default boot up configuration file for the
Switch unless otherwise configured by the user.
Version Displays the firmware version set in the Switch.
Size (bytes) Displays the size of the configuration file, in bytes.
Update time Displays the time that the configuration file was updated to the Switch.
From Displays the location from which the configuration file was uploaded.
User Displays the name of the user (device) that updated this configuration file. Unknown users will be
displayed as Anonymous.
Boot Click the Boot button under this heading to use this configuration file as the boot up firmware for
the Switch. This will apply upon the next reboot of the Switch.
Active Click the Active button to enable the configuration file settings.
Delete Click the Delete button under this heading to delete this configuration file from the Switch’s
memory.
Firmware Information Settings
The following window allows the user to view information about current firmware images stored on the Switch.
To view this window, click System Configuration >Firmware Information Settings, as shown below:
Figure 2- 4 Firmware Information window
This window holds the following information:
Parameter Description
ID States the image ID number of the firmware in the Switch’s memory. The Switch can store two
firmware images for use. Image ID 1 will be the default boot up firmware for the Switch unless
otherwise configured by the user.
Version States the firmware version.
Size (Bytes) States the size of the corresponding firmware, in bytes.
Update Time States the specific time the firmware version was downloaded to the Switch.
From States the IP address of the origin of the firmware. There are five ways firmware may be
downloaded to the Switch.
R – If the IP address has this letter attached, it denotes a firmware upgrade through the serial

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port RS232.
T– If the IP address has this letter attached to it, it denotes a firmware upgrade through Telnet.
S – If the IP address has this letter attached to it, it denotes a firmware upgrade through the
Simple Network Management Protocol (SNMP).
W– If the IP address has this letter attached to it, it denotes a firmware upgrade through the
web-based management interface.
SSH – If the IP address has these three letters attached, it denotes a firmware update through
SSH.
SIM – If the IP address has these letters attached, it denotes a firmware upgrade through the
Single IP Management feature.
User States the user who downloaded the firmware. This field may read “Anonymous” or “Unknown”
for users that are unidentified.
Port Configuration
This section contains information for configuring various attributes and properties for individual physical ports,
including port speed and flow control.
DDM
This folder contains windows that perform Digital Diagnostic Monitoring functions on the Switch. There are windows
that allow the user to view the digital diagnostic monitoring status of SFP modules inserting to the Switch and to
configure alarm settings, warning settings, temperature threshold settings, voltage threshold settings, bias current
threshold settings, Tx power threshold settings, and Rx power threshold settings.
DDM Settings
The DDM settings window allows the user to configure the action that will occur for specific ports when an exceeding
alarm threshold or warning threshold event is encountered.
To view this window, click System Configuration > Port Configuration > DDM > DDM Settings, as shown below:
Figure 2- 5 DDM Settings window
The following fields can be configured:
Parameter Description