peplink Balance 30 User manual

COPYRIGHT &TRADEMARKS
Specifications are subject to change without prior notice. Copyright © 2007 PePLink Ltd. All Rights
Reserved. PePLink and the PePLink logo are trademarks of PePLink Ltd. Other brands or products
mentioned may be trademarks or registered trademarks of their respective owners.
PePLink Balance Series v4.0
PePLink Balance 30/200/300/380/700
User Manual
Rev. 2.0
June 07

PePLink Balance Series v4.0 User Manual
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Table of Contents
1INTRODUCTION AND SCOPE ......................................................................................................... 4
2GLOSSARY ....................................................................................................................................... 4
3PRODUCT FEATURES ........................................................................................................................ 5
3.1 SUPPORTED NETWORK FEATURES ................................................................................................................. 5
3.2 OTHER SUPPORTED FEATURES...................................................................................................................... 5
4PACKAGE CONTENTS ..................................................................................................................... 6
4.1 PEPLINK BALANCE 30 /200 /300 ............................................................................................................ 6
4.2 PEPLINK BALANCE 380 /700 .................................................................................................................... 6
5PEPLINK BALANCE OVERVIEW ....................................................................................................... 7
5.1 PEPLINK BALANCE 200.............................................................................................................................. 7
5.2 PEPLINK BALANCE 30 /300 ...................................................................................................................... 9
5.3 PEPLINK BALANCE 380............................................................................................................................11
5.4 PEPLINK BALANCE 700............................................................................................................................14
6INSTALLATION ............................................................................................................................... 17
6.1 CONNECTING THE NETWORK WITH PEPLINK BALANCE ...............................................................................17
6.2 CONFIGURING COMPUTERS ON THE LAN .................................................................................................18
7BASIC CONFIGURATION .............................................................................................................. 21
7.1 CONNECTING TO WEB ADMINISTRATION INTERFACE ..................................................................................21
7.2 CONFIGURATION WITH SETUP WIZARD.......................................................................................................22
7.3 ADVANCED SETUP ...................................................................................................................................23
8CONFIGURATION OF LAN INTERFACE(S) .................................................................................... 24
9DROP-IN MODE............................................................................................................................. 27
10 CONFIGURATION OF WAN INTERFACE(S) .................................................................................. 30
10.1 DHCP CONNECTION ..............................................................................................................................30
10.2 STATIC IP CONNECTION...........................................................................................................................33
10.3 PPPOECONNECTION .............................................................................................................................36
10.4 GRE CONNECTION .................................................................................................................................38
10.5 SMTP FORWARDING ............................................................................................................................... 43
10.6 DYNAMIC DNS SETTINGS .........................................................................................................................43
10.7 WAN HEALTH CHECK .............................................................................................................................44
11 FIREWALL CONFIGURATION......................................................................................................... 47
12 MANAGEMENT OF OUTBOUND TRAFFIC TO WAN...................................................................... 51
12.1 OUTBOUND TRAFFIC POLICY.....................................................................................................................51
12.2 FINE TUNING LOAD DISTRIBUTION FOR INDIVIDUAL SERVICES .......................................................................52
13 MANAGEMENT OF INBOUND ACCESS FROM WAN................................................................... 57
13.1 DEFINITION OF SERVERS ON LAN ..............................................................................................................57
13.2 DEFINITION OF SERVICES...........................................................................................................................58
13.3 DEFINITION OF PORTING FORWARDING .....................................................................................................62
13.4 DEFINITION OF DNS RECORDS .................................................................................................................64
14 CONFIGURATION OF NAT MAPPINGS ........................................................................................ 75
15 MISCELLANEOUS SETTINGS .......................................................................................................... 77
15.1 HIGH AVAILABILITY...................................................................................................................................77
15.2 TRAFFIC PRIORITIZATION............................................................................................................................79
16 SYSTEM SETTINGS .......................................................................................................................... 79

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16.1 ADMIN SECURITY .....................................................................................................................................79
16.2 FIRMWARE UPGRADE ...............................................................................................................................82
16.3 TIME........................................................................................................................................................83
16.4 EMAIL NOTIFICATION................................................................................................................................84
16.5 REMOTE SYSLOG...................................................................................................................................... 85
16.6 SNMP ....................................................................................................................................................85
16.7 REPORTING SERVER..................................................................................................................................87
16.8 SAVING AND LOADING CONFIGURATIONS................................................................................................89
16.9 FLASH MANAGEMENT ..............................................................................................................................90
16.10 REBOOT ..................................................................................................................................................91
16.11 PING TEST ................................................................................................................................................91
16.12 TRACEROUTE TEST.....................................................................................................................................92
17 STATUS............................................................................................................................................ 93
17.1 DEVICE ...................................................................................................................................................93
17.2 LINK USAGE STATUS..................................................................................................................................94
17.3 ACTIVE SESSIONS .....................................................................................................................................95
17.4 DHCP CLIENTS .......................................................................................................................................96
17.5 LOG........................................................................................................................................................ 96
APPENDIX A. RESTORATION OF FACTORY DEFAULTS........................................................................... 97
APPENDIX B. ROUTING UNDER DHCP, STATIC IP, AND PPPOE............................................................ 98
B.1 ROUTING VIA NETWORK ADDRESS TRANSLATION (NAT) .............................................................................98
B.2 ROUTING VIA IP FORWARDING .................................................................................................................98
APPENDIX C. CASE STUDIES............................................................................................................... 99
C.1 PERFORMANCE OPTIMIZATION..................................................................................................................99
C.2 MAINTAINING THE SAME IP ADDRESS THROUGHOUT A SESSION.................................................................100
C.3 BYPASSING THE FIREWALL TO ACCESS HOSTS ON LAN .............................................................................102
C.4 INBOUND ACCESS RESTRICTION ..............................................................................................................103
C.5 OUTBOUND ACCESS RESTRICTION...........................................................................................................104
APPENDIX D. TROUBLESHOOTING ....................................................................................................... 105
APPENDIX E. PRODUCT SPECIFICATIONS........................................................................................... 107
E.1 PEPLINK BALANCE 200..........................................................................................................................107
E.2 PEPLINK BALANCE 30 AND PEPLINK BALANCE 300 ................................................................................108
E.3 PEPLINK BALANCE 380..........................................................................................................................109
E.4 PEPLINK BALANCE 700..........................................................................................................................110

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1Introduction and Scope
The PePLink Balance series provides link aggregation and load balancing across up to seven
WAN connections.
The PePLink Balance 30 provides a feature set that is suitable for Small Office / Home Office
(SO/HO) environments.
The PePLink Balance 200, 300, 380, and 700, with a suite of advanced enterprise-class
features, make ideal single-box solutions for medium to large-sized businesses
environments, and allow service providers to enable highly available multi-network service.
This manual applies to the following PePLink Balance products:
PePLink Balance 30 (firmware version v4.0.x)
PePLink Balance 200 (firmware version v4.0.x)
PePLink Balance 300 (firmware version v4.0.x)
PePLink Balance 380 (firmware version v4.0.x)
PePLink Balance 700 (firmware version v4.0.x)
The manual presents how to set up PePLink Balance, and provides a collection of case
studies involving advanced features of PePLink Balance.
2Glossary
The following terms, acronyms, and abbreviations are frequently used in this manual:
Term
Definition
DHCP
Dynamic Host Configuration Protocol
DNS
Domain Name System
GRE
Generic Routing Encapsulation
HTTP
Hyper-Text Transfer Protocol
ICMP
Internet Control Message Protocol
IP
Internet Protocol
LAN
Local Area Network
MAC Address
Media Access Control Address
MTU
Maximum Transmission Unit
MSS
Maximum Segment Size
NAT
Network Address Translation
PPPoE
Point to Point Protocol over Ethernet
SNMP
Simple Network Management Protocol
TCP
Transmission Control Protocol
UDP
User Datagram Protocol
VRRP
Virtual Router Redundancy Protocol
WAN
Wide Area Network

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3Product Features
PePLink Balance Series products enable all LAN users to share broadband Internet
connections, and provide advanced features to enhance Internet access.
The following is the list of supported features:
3.1 Supported Network Features
3.1.1 WAN
Multiple WAN Connection (DHCP, PPPoE, Static IP Address, or GRE)
10/100/1000 Mbps Connection in Full/Half Duplex
Drop-in Mode
Network Address Translation (NAT) / Port Address Translation (PAT)
Inbound and Outbound NAT mapping
PPTP packet pass through
Multiple static IP addresses per WAN Connection
MAC address clone
Customizable MTU and MSS values
WAN connection health check
Dynamic DNS (Supported service providers: changeip.com, dyndns.org, no-ip.org)
3.1.2 LAN
DHCP server on LAN
Static routing rules
Local DNS
3.1.3 Firewall
Outbound (LAN to WAN) firewall rules
Inbound (WAN to LAN) firewall rules per WAN connection
Specification of NAT mappings
3.1.4 Inbound Traffic Management
TCP/UDP traffic redirection to dedicated LAN server(s)
LAN server load distribution per DNS record
Inbound link load balancing by means of DNS (available only with PePLink
Balance 200, 300, 380, and 700)
3.1.5 Outbound Traffic Management
Link load distribution per TCP/UDP service
Persistent routing for specified source and/or destination IP addresses per TCP/UDP
service
3.2 Other Supported Features
Easy-to-use web-based administration interface
HTTP and HTTPS support for Web Administration Interface
Configurable web administration port and administrator password
Firmware upgrades, configuration backups, Ping, and Traceroute via Web
Administration Interface
Remote web based configuration (via WAN and LAN interfaces)

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Remote reporting to PePLink Balance reporting server (available only with
PePLink Balance 200, 300, 380, and 700)
Hardware High Availability via VRRP (available only with PePLink Balance 200,
300, 380, and 700)
Quality of Service for Voice over IP and Secure Web (available only with PePLink
Balance 200, 300, 380, and 700)
Time server synchronization
SNMP
Email notification
Syslog
SIP pass through
PPTP packet pass through
Web Logging
Link Status (Active Sessions)
4Package Contents
The contents of PePLink Balance product packages are as follows:
4.1 PePLink Balance 30 / 200 / 300
PePLink Balance 30
Power adapter
Information slip
CD containing this user manual
4.2 PePLink Balance 380 / 700
PePLink Balance 380/700
Power cord
Information slip
CD containing this user manual
Rack mount kit

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5PePLink Balance Overview
5.1 PePLink Balance 200
5.1.1 Front Panel Appearance
5.1.2 LED Indicators
The statuses indicated by the Front Panel LEDs are as follows:
Power and Status Indicators
Power
OFF –Power off
Green –Power on
Status
OFF –System initializing
Red –Booting up or busy
Orange –Power on self test
Green –Ready
LAN Indicators
Activity
OFF –Port is not connected
Green –Port is connected
Blinking –Port is transferring data
10/100
OFF –10Mbps
Orange –100Mbps
WAN Indicators
Activity
OFF –Port is not connected
Green –Port is connected
Blinking –Port is transferring data
10/100
OFF –10Mbps
Orange –100Mbps

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5.1.3 Rear Panel Appearance
5.1.4 Connector Ports
The connector ports on the rear panel are as follows:
Connector Ports
RS-232 Port
Reserved for engineering use
WAN Ports
Supports up to two 10/100BaseT WAN connections, typically
connected to broadband modems
LAN Ports
Supports up to four 10/100BaseT LAN connections, typically
connected to client PCs
Power Connector
DC 9V power input from supplied power adaptor
5.1.5 Unit Base Appearance
Power Connector
LAN Ports
WAN Ports
RS-232 Port
Serial Number and
LAN MAC Address
Mounting
Points
Mounting
Points

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5.2 PePLink Balance 30 / 300
5.2.1 Front Panel Appearance
5.2.2 LED Indicators
The statuses indicated by the Front Panel LEDs are as follows:
Power and Status Indicators
Power
OFF –Power off
Green –Power on
Status
OFF –System initializing
Red –Booting up or busy
Orange –Power on self test
Green –Ready state
LAN Indicators
Activity
OFF –Port is not connected
Green –Port is connected
Blinking –Port is transferring data
10/100
OFF –10Mbps
Orange –100Mbps
WAN Indicators
Activity
OFF –Port is not connected
Green –Port is connected
Blinking –Port is transferring data
10/100
OFF –10Mbps
Orange –100Mbps

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5.2.3 Rear Panel Appearance
5.2.4 Connector Ports
Connector Ports
RS-232 Port
Reserved for engineering use
WAN Ports
Supports up to three 10/100BaseT WAN connections, typically
connected to broadband modems
LAN Ports
Supports up to four 10/100BaseT LAN connections, typically
connected to client PCs
Power Connector
DC 9V power input from supplied power adaptor
5.2.5 Unit Base Appearance
Power Connector
LAN Ports
WAN Ports
RS-232 Port
Serial Number and
LAN MAC Address
Mounting
Points
Mounting
Points

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5.3 PePLink Balance 380
5.3.1 Front Panel Appearance
5.3.2 LED Indicators
The statuses indicated by the Front Panel LEDs are as follows:
Power and Status Indicators
Power LED
OFF –Power off
Green –Power on
RS-232 Port
RS-232 Port
Reserved for Engineering Use
LAN and WAN Indicators
Green LED
ON –100 Mbps
OFF –10 Mbps
Yellow LED
Solid –Port is connected without traffic
Blinking –Data is transferring
OFF –Port is not connected
Note:
They are MDI ports
LCD Display
RS-232 Port
RS-232 Port
LCD Controls
LAN Port
RS-232
Port
Power LED
WAN Ports

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5.3.3 LCD Display Menu
> System Status
> System
> Firmware ver (shows firmware version)
> Serial number (shows serial number)
> System time (shows current time)
> System up time (shows up time since server reboot)
> CPU load (shows current CPU loading, 0-100%)
> LAN
> Status (shows LAN port physical status)
> IP address (shows LAN IP address)
> Subnet mask (shows LAN subnet mask)
> Link status (shows Connected/Disconnected, IP address list)
> WAN1
> WAN2
> WAN3
> Link usage
> Throughput in (shows transfer rate in Kbps)
> WAN1
> WAN2
> WAN3
> Throughput out (shows transfer rate in Kbps)
> WAN1
> WAN2
> WAN3
> Data Transfer’d (shows volume transferred since last reboot in MB)
> WAN1
> WAN2
> WAN3
> Maintenance
> Power off > Power off? (Yes/No) (powers off unit)
> Reboot > Reboot? (Yes/No) (reboots unit)
> Factory default > Factory default? (Yes/No) (restores factory defaults)
> LAN config
> Port speed (shows port speed: Auto, 10baseT-FD,
> LAN 10baseT-HD, 100baseTx-FD,
> WAN1 100baseTx-HD)
> WAN2
> WAN3

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5.3.4 Rear Panel Appearance
Connector Ports
USB Ports
Reserved for engineering use
Power Connector
AC input 110/220V
Switch
Power Switch
-To hold pressing the key for 4 secs will power down the unit
-When the unit is powered off, press it will power on the unit
5.3.5 Unit Label Appearance
USB Ports
Power Connector
Serial Number and
LAN MAC Address
Power Switch

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5.4 PePLink Balance 700
5.4.1 Front Panel Appearance
Status indicated in the Front Panel is as follows:
RS-232 & USB Ports
RS-232 Port
Reserved for Engineering Use
USB Ports
Reserved for Engineering Use
LAN Port and WAN Ports 1 to 3 (Gigabit Ethernet)
Green LED
ON –1000 Mbps
OFF –100/10 Mbps
Yellow LED
Solid –Port is connected without traffic
Blinking –Data is transferring
OFF –Port is not connected
Note:
They are auto MDI/MDI-X ports
WAN Ports 4 to 7 (Fast Ethernet)
Green LED
ON –100 Mbps
OFF –10 Mbps
Yellow LED
Solid –Port is connected without traffic
Blinking –Data is transferring
OFF –Port is not connected
Note:
They are MDI ports
LED Indicator
Power LED
OFF –Power off
ON (Green) –Power on
LCD Display
RS-232 Port
RS-232 Port
LCD Controls
USB Ports
LAN Port
RS-232
Port
WAN Ports
Power LED

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5.4.2 LCD Display Menu
> System Status
> System
> Firmware ver (shows firmware version)
> Serial number (shows serial number)
> System time (shows current time)
> System up time (shows up time since server reboot)
> CPU load (shows current CPU loading, 0-100%)
> LAN
> Status (shows LAN port physical status)
> IP address (shows LAN IP address)
> Subnet mask (shows LAN subnet mask)
> Link status (shows Connected/Disconnected, IP address list)
> WAN1
> WAN2
> …
> WAN7
> Link usage
> Throughput in (shows transfer rate in Kbps)
> WAN1
> WAN2
> …
> WAN7
> Throughput out (shows transfer rate in Kbps)
> WAN1
> WAN2
> …
> WAN7
> Data Transfer’d (shows volume transferred since last reboot in MB)
> WAN1
> WAN2
> …
> WAN7
> Maintenance
> Power off > Power off? (Yes/No) (powers off unit)
> Reboot > Reboot? (Yes/No) (reboots unit)
> Factory default > Factory default? (Yes/No) (restores factory defaults)
> LAN config
> Port speed (shows port speed: Auto, 10baseT-FD,
> LAN 10baseT-HD, 100baseTx-FD,
> WAN1 100baseTx-HD, 1000baseTx-FD)
> WAN2
> …
> WAN7

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5.4.3 Rear Panel Appearance
Connector Ports
RS-232 Port
Reserved for engineering use
USB Ports
Reserved for engineering use
Power Connector
AC input 110/220V
Switches
Power Switch
-To hold pressing the key for 4 secs will power down the unit
-When the unit is powered off, press it will power on the unit
Reset Switch
Press and release once to reset the system
5.4.4 Unit Label Appearance
USB Ports
RS-232 Port
Power Connector
Serial Number and
LAN MAC Address
Power Switch
Reset Switch

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6Installation
6.1 Connecting the Network with PePLink Balance
6.1.1 Preparation
Before installing PePLink Balance, please prepare the following:
At least one Internet/WAN access account
For each network connection, one 10/100BaseT UTP cable with RJ45 connectors, or
one 1000BaseT Cat5E UTP cable for the Gigabit ports on the Balance 700.
A computer with TCP/IP network protocol and a web browser installed (Supported
browsers include Microsoft Internet Explorer 5 or above, and Firefox 1.5 or above.)
6.1.2 Constructing the Network
At a high level, construct the network according to the following steps:
1. With a network cable, connect a computer to one of the LAN ports on the PePLink
Balance. For PePLink Balance 30, 200, and 300, repeat with different cables for up to
4 computers to be connected.
2. With another network cable, connect the WAN/broadband modem and one of the
WAN ports on the PePLink Balance. Repeat using different cables to connect up to 2,
3 or 7 WAN/broadband connections with the PePLink Balance 200, 30/300/380 and
700, respectively.
3. For PePLink Balance 30, 200 and 300, connect the provided power adapter to the
power connector, and then plug in the power adapter at a power outlet. For PePLink
Balance 380 and 700, connect the provided power cord to the AC power port, and
then plug in the cord at a power outlet.
The following figure schematically illustrates the configuration that results:

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6.1.3 Configuring the Network Environment
To ensure that PePLink Balance works properly in the LAN environment, and can access the
Internet via the WAN connections, please refer to the following setup procedures:
PC Configuration on the LAN
Section 6.2, Configuring Computers on the LAN
LAN Configuration
For basic configuration, please refer to Section 7, Basic Configuration.
Section 8, Configuration of LAN Interface(s) covers advanced configuration.
WAN Configuration
For basic configuration, refer to Section 7, Basic Configuration.
Section 10, Configuration of WAN Interface(s) covers advanced configuration.
6.2 Configuring Computers on the LAN
The simplest way to setup the Local Area Network (LAN) is to enable the DHCP Server
functionality of PePLink Balance. With this setting, PePLink Balance will automatically
provide a suitable IP Address (and related information) to each computer connected to its
LAN interface. (Please refer to Section 8, Configuration of LAN Interface(s), for further
details on the DHCP Server Settings.)
The following steps configure a computer on the LAN to use the DHCP Server functionality
provided by PePLink Balance:
6.2.1 Windows 95/98/ME/2000 DHCP Client Configuration
4. Select Start Menu > Settings > Control Panel > Internet Options.
5. Select the Connection tab, and click the Setup button.
6. Select the option:
I want to set up my Internet connection manually, or I want to connect
through a local area network (LAN)
7. Click Next.
8. Select the option:
I connect through a local area network (LAN)
9. Click Next.
10. On the subsequent Local area network Internet Configuration screen, ensure that all
of the boxes are unchecked.
11. When prompted with the following:
Do you want to set up an Internet mail account now?
Select the option No.
12. Click Finish to close the Internet Connection Wizard.

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6.2.2 Windows XP DHCP Client Configuration
1. Select Start Menu > Control Panel > Network and Internet Connections.
2. Select Set up or change your Internet Connection.
3. Select the Connection tab, and click the Setup button.
4. At the Location Information pop-up menu, select Cancel.
5. At the New Connection Wizard screen, click Next.
6. Select Connect to the Internet and click Next.
7. Select Set up my connection manually and click Next.
8. Select the following checkbox:
Connect using a broadband connection that is always on
9. Click Next.
10. Click Finish to close the New Connection Wizard.
6.2.3 Windows Vista DHCP Client Configuration
1. Connect the computer and the PePLink Balance’s LAN interface with an Ethernet
cable.
2. The following screen will be displayed on
the computer screen. Choose “Work”.
3. Click “Close” to finish.

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6.2.4 Mac DHCP Client Configuration
1. Open TCP/IP Control Panel.
2. From the Connect via pop-up menu, select Ethernet.
3. Select Using DHCP Server from the Configure pop-up menu.
(The DHCP Client ID field can be left blank.)
4. Save the settings and close the TCP/IP Control Panel.
6.2.5 UNIX DHCP Client Configuration
Depending on the flavor of UNIX, the procedure may vary. The following steps are for Red
Hat Enterprise Linux 3:
1. Login to the system as root.
2. At the command prompt, type netconfig.
3. When prompted with the following:
Would you like to set up networking?
Respond with Yes.
4. When prompted with the following:
Please enter the IP configuration for this machine…
Select the option:
Use dynamic IP configuration (BOOTP/DHCP)
5. Select OK.