Comtrend Corporation CT-5241 User manual

CT-5241
SHDSL Router
User’s Manual
Version A1.0, January 16, 2007
261039-013

Warning
Before servicing or disassembling this equipment, always disconnect all
power and telephone lines from the device.
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 Use an appropriate power supply and a UL Listed telephone line cord.
Specification of the power supply is clearly stated in Appendix A -
Specifications.
Preface
This manual is designed to provide information to network administrators. It
covers the installation, operation and applications of the CT-5241 SHDSL router.
The reader reading this manual is presumed to have a basic understanding of
telecommunications. For product update, new product release, manual revision,
software upgrade, technical support, etc., visit Comtrend Corporation at
http://www.comtrend.com
This document is subject to change without notice.
Copyright
Copyright© 2007 Comtrend Corporation. All rights reserved. The information
and messages contained herein are proprietary to Comtrend Corporation. No
part of this document may be translated, transcribed, reproduced, in any form, or
by any means without prior written permission by Comtrend Corporation.
Technical support
When you find the product out of service, or that it doesn’t work properly, please
contact technical support engineer for immediate servicing or email to
[email protected]
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T
TA AB BL LE E O OF F C CO ON NT TE EN NT TS S
CHAPTER 1 OVERVIEW............................................................................................................6
1.1 APPLICATION ..........................................................................................................................6
1.2 FEATURES ...............................................................................................................................7
1.3 LED INDICATORS ...................................................................................................................8
CHAPTER 2 INSTALLATION.........................................................................................................9
2.1 HARDWARE INSTALLATION .......................................................................................................9
2.2 REAR-PANEL CONNECTIONS ...................................................................................................10
CHAPTER 3 QUICK INSTALLATION.................................................................................... 11
3.1 LOGIN.....................................................................................................................................11
3.1.1 Web Page Layout ..........................................................................................................13
3.1.2 Monitoring the SHDSL Line .........................................................................................14
3.2 WAN INTERFACE CONFIGURATION ......................................................................................15
3.2.1 Bridge mode: Service for one fixed IP address.............................................................16
3.2.2 Router Mode: Service for Five Static IP Addresses ......................................................18
3.2.3 PPPoE ..........................................................................................................................22
3.2.4 PPPoA ..........................................................................................................................24
3.2.5 Password Setup.............................................................................................................25
3.2.6 Setting the Bridge .........................................................................................................27
3.3 SPANNING TREE PROTOCOL..................................................................................................27
3.4 STATIC BRIDGING .................................................................................................................28
3.4.1 Write System Configurations ........................................................................................29
3.4.2 Load Factory Default Values ........................................................................................30
CHAPTER 4 SETTING UP WAN AND LAN INTERFACES.................................................31
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4.1 LAN INTERFACE ..................................................................................................................31
4.2 CONFIGURING THE WAN I NTERFACE ...................................................................................32
4.2.1 VC Data Flow Control..................................................................................................32
4.2.2 Setting up an ISP ..........................................................................................................34
CHAPTER 5 SNMP ......................................................................................................................35
5.1 ENABLE SNMP ....................................................................................................................35
5.2 DISABLE SNMP ...................................................................................................................36
CHAPTER 6 PACKET FILTER ................................................................................................37
6.1 ADD A PACKET FILTER ENTRY...............................................................................................37
6.2 DELETE A PACKET FILTER ENTRY..........................................................................................39
6.3 ENABLE/DISABLE PACKET FILTER ........................................................................................39
CHAPTER 7 ROUTING.............................................................................................................40
7.1 STATIC ROUTE ......................................................................................................................40
7.2 SET-UP THE RIP FUNCTION ...................................................................................................42
7.3 DISPLAYING THE ROUTING TABLE ........................................................................................44
CHAPTER 8 NAT .......................................................................................................................45
8.1 MULTIPLE TO ONE ................................................................................................................46
8.2 ONE TO ONE NAT.................................................................................................................47
8.3 MULTI-NAT .........................................................................................................................48
8.4 VIRTUAL SERVER..................................................................................................................50
CHAPTER 9 DHCP ....................................................................................................................51
9.1 DHCP SERVER .....................................................................................................................51
9.2 DHCP RELAY.......................................................................................................................52
CHAPTER 10 DNS PROXY ......................................................................................................53
CHAPTER 11 IGMP...................................................................................................................54
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CHAPTER 12 VLAN ..................................................................................................................56
CHAPTER 13 MAINTENANCE AND DIAGNOSTICS.........................................................57
13.1 SOFTWARE UPGRADE AND CONFIGURATION BACKUP /RESTORATION.................................57
13.2 OAM LOOPBACK ...............................................................................................................61
13.3 PING ...................................................................................................................................62
13.4 PERFORMANCE MONITORING .............................................................................................63
CHAPTER 14 APPLICATION EXAMPLE .............................................................................66
14.1 ADDING THE STATIC ROUTE (WEB) ....................................................................................66
CHAPTER 15 PIN ASSIGNMENTS .........................................................................................68
CHAPTER 16 CONSOLE ACCESS..........................................................................................69
16.1 LOGIN.................................................................................................................................69
16.2 KEYBOARD OPERATIONS ....................................................................................................71
16.3 MONITORING THE SHDSL LINE STATUS ............................................................................74
16.4 PASSWORD SETUP...............................................................................................................74
16.5 RETRIEVE THE FACTORY DEFAULT SETTINGS .....................................................................75
16.6 DISABLE THE WEB BROWSER .............................................................................................75
16.7 SAVE THE CONFIGURATIONS ...............................................................................................76
CHAPTER 17 TELNET ACCESS ...............................................................................................77
APPENDIX A: SPECIFICATIONS................................................................................................79
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Chapter 1 Overview
The SHDSL router satisfies the needs of multiple users in small/home offices and
remote/branch offices. It provides symmetrical transmission speeds of up to 4.6
Mbps through a SHDSL connection, over a four-wire line. In addition, it supports
up to 16 virtual concurrent connections to multiple destinations. The integrated
four-port switch enables up to four devices to be connected to the LAN.
The SHDSL router can be used for a variety of applications, including video
conferencing, remote training, e-commerce, and other multimedia applications.
Easy configuration and monitoring can be accomplished using the Web browser.
The SHDSL router has full routing capabilities to segment/route IP protocol and is
capable of bridging other protocols. It can be also configured in either server or
client mode enabling point-to-point connectivity between two sites.
1.1 Application
The router can be used for DSLAM and point-to-point applications.
DSLAM Application
Point-to-Point Application
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1.2 Features
Compliant with ITU-T G.991.2 (G.SHDSL) and G.994.1 (G.hs)
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2-wire operation with auto-detection or manual setting
4-port 10/100 Base-T Ethernet switch with MDI/MDIX
Operates as a Bridge & Router
RFC 2684 (1483) Bridging
RFC 2684 (1483) Routing
RFC 2364 PPPoA
RFC 2516 PPPoE
OAM F4/F5
Supports up to 16 VCs
Supports UBR/CBR/VBR ATM services
Supports VLAN
Source MAC filter by VC
Supports NAT and PAT
Supports DHCP server, DHCP relay, and DNS proxy
MAC Filtering and Packet Filter Function
Virtual server with single port mapping
Virtual server with IP protocol mapping
Built-in SNMP for remote control
Supports remote upgrades
Supports DHCP client
VPN Pass Through
Virtual server with IP protocol mapping and Port range mapping
Supports RIPv.1, RIPv.2, and Static routing protocol
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Web browser configuration and management tool
1.3 LED Indicators
There are eight LEDs on the front panel of the router; the functions of the LEDs are
described in the table below.
LED Color Mode Function
On Power is supplied.POWER Green
Off Power is not supplied.
On An Ethernet link is established.
Off An Ethernet Link is not established.
LAN 1~4 Green
Blink Data transmitting or receiving over LAN.
On The physical link through the RJ45 connection
cable is established.
Off A SHDSL connection is not established.
SHDSL
LINK
Green
Blink The SHDSL line is training.
On Receiving data over the SHDSL link.SHDSL
RX
Green
Off No data receiving over the SHDSL link.
On Transmitting data over the SHDSL link.SHDSL
TX
Green
Off No data transmitting over the SHDSL link.
Figure 1 Front Panel LED Indicators
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Chapter 2 Installation
2.1 Hardware Installation
The following equipment may be necessary to install the router:
 AC power adapter
A power adapter is shipped with the router.
 LAN connection cable
To connect to the hub, use a straight-through RJ45 cable. To connect to a PC, use
a crossover RJ45 cable.
 Four-wire (8P8C) straight through RJ45 cable
A four-wire (8P8C) straight through RJ45 cable is needed to connect to the LINE
port to the wall outlet.
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2.2 Rear-panel Connections
Step 1
Step 2
Step 3
DSL connection
Connect the supplied RJ-45 cable to the port marked LINE at the back of the
SHDSL router. Connect the other end of the cable to your telephone-line wall
outlet. Ensure your computer is turned on before you connect the DSL line to the
router. A green LED on the front of the device labeled LINK will illuminate. If the
SHDSL LINK LED does not illuminate within one minute of it being connected,
check your cable connections to ensure they are correct and securely installed.
Ethernet connection
Insert one end of the RJ45 Ethernet cable into one of the LAN ports marked LAN
on the back of the SHDSL router. Connect the other end of the cable into your
Ethernet Network Interface Card (NIC) installed in your computer. When the
Ethernet connection is established, the correspondent green LED on the front
panel labeled LAN will illuminate. You can connect up to four PCs, by repeating
this process.
Power connection
Connect the supplied external AC adapter into the DC power outlet on the back of
the router. Connect the power supply into your wall outlet or surge protector.
Turn on the power switch. After powering on, the router performs a self-test.
Wait for a few seconds until the test is finished, then the router will be ready to
operate. The POWER indicator on the front of the router will illuminate green to
indicate that power is being supplied to the router.
Caution 1: If the router fails to power up, or it malfunctions, first verify that the
power supply is connected correctly. Then power it on again. If the
problem persists, contact our technical support engineers.
Caution 2: Before servicing or disassembling this equipment always disconnect all
power cords and telephone lines from the wall outlet.
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Chapter 3 Quick Installation
This section describes how to manage the router via the Web browser from the
remote end. The Web page is best read with a display resolution of 1024 x 768.
To change the resolution you can go to the Microsoft Windows control panel and
click on the Display icon, and change the display settings. You will find the display
settings there.
3.1 Login
STEP 1: Configure your workstation to the same network segment as the router,
if for example the router is set to its default address of 192.168.1.1, we
could set the PC to 192.168.1.133 and subnet mask 255.255.255.0.
Note that the router’s default IP address is 192.168.1.1 and the default private
address range provided by the ISP server in the router is 192.168.1.2 through
192.168.1.254.
STEP 2: Start your Internet browser.
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STEP 3: Enter the IP address of the router in the Web address field. For
example, if the IP address is 192.168.1.1, enter http:// 192.168.1.1
STEP 4: You will be prompted to enter your user name and password. Type your
password, or if the password was not changed, type the default
passwords. The default ADMINISTRATOR user name and password are
root.
STEP 5: After successfully logging in, you will reach the main configuration page.
The left hand side has a menu and the right side is blank.
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3.1.1 Web Page Layout
On each Web page, there are two areas.
Menu Bar: On the left side of the Web page is the menu bar. It is divided into
two parts: Basic and Advanced. The Basic menu bar sets up the device for quick
setup. The Advanced menu bar configures advance functions such as SNMP,
DHCP server, and DNS proxy. The menu also covers the maintenance function.
Main Window: The main window in middle of the page displays after clicking a
button on the menu bar. It includes the tabs on the top of the window. The tabs
lead to other sub-screens.
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3.1.2 Monitoring the SHDSL Line
Click Link Status on the Basic menu bar. The Link Status screen has two tabs:
SHDSL Status and Performance. SHDSL Status is used to monitor the SHDSL
link and the Performance is used to monitor the SHDSL performance.
The following is the screen after clicking the [Performance] button.
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3.2 WAN Interface Configuration
The router supports 16 ATM interfaces. A virtual channel (VC) can be configured
for each ATM interface such as ATM1 to VC1, ATM 2 to VC2…. Each VC can be
specified with a protocol, which can be RFC-1483 bridged, RFC-1483 Routed,
PPPoE or PPPoA.
By default, VC1 is enabled with the parameters VPI/VCI 0/33 and protocol
RFC1483 Bridged. VC1 can work without any modifications. VCs 2 to 16 are
disabled.
If the VC is added on the Basic> Wan Setup, it will be added from VC2 to VC16.
(VC1 is already enabled for 0/33).
If a PPPoE-based VC is created on Basic>WAN Setup, the DHCP server will be
automatically enabled. If a PPPoE based VC is created on Advanced>Interface,
the DHCP server function must be enabled manually.
The WAN interface can be configured to operate in the following modes: bridge,
router, PPPoE, or PPPoA. Configuration for each mode will be explained in the
sections that follow.
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3.2.1 Bridge mode: Service for one fixed IP address
To configure one static IP address, you need to set-up the VC in RFC1483 bridged
mode. The router has a default Virtual Channel (VC) of 0/33. It can function
without other modifications.
STEP 1: Click WAN Setup on the Basic menu bar, and enter values for: VPI, VCI,
Encapsulation (LLC or VC MUX).
VPI Enter a value for the virtual path identifier
VCI Enter a value for the virtual channel identifier
LLC
Encapsulation:
With LLC encapsulation, a link control header is added to the Ethernet
packet that identifies the protocol type (Ethernet). This allows
multiple protocols to be transmitted over the ATM Virtual Circuit.
VC Multiplexing: With VC Multiplexing, no link control header is needed as the ATM
Virtual Circuit is assumed to be carrying a single protocol.
Enable NAPT This function cannot be set for bridge mode.
STEP 2: Click RFC1483 Bridged.
STEP 3: Click the Add button. The new VC is added in the Current ATM PVC List
on the bottom of the screen.
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To modify the VC, select (click) a VC from the Current ATM PVC List to display the
parameters of the VC. Change its parameters and click the Modify button.
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3.2.2 Router Mode: Service for Five Static IP Addresses
To set-up the service for five static IP addresses, you need to set-up the VC in
RFC1483 Routed mode.
STEP 1: Click WAN Setup on the Basic menu bar.
STEP 2: Enter values for: VPI, VCI, Encapsulation (LLC or VC MUX), Enable NAPT.
VPI Enter a value for the virtual path identifier.
VCI Enter a value for the virtual channel identifier.
LLC Encapsulation: With LLC encapsulation, a link control header is added to the
Ethernet packet that identifies the protocol type (Ethernet).
This allows multiple protocols to be transmitted over the ATM
Virtual Circuit.
VC Multiplexing: With VC Multiplexing, no link control header is needed as the
ATM Virtual Circuit is assumed to be carrying a single protocol.
Enable NAPT Selecting Enable NAPT will enable Network Port Address
Translation on the WAN interface.
STEP 3: Click the RFC1483 Routed option.
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STEP 4: Click the Add button. The new VC is added in the Current ATM PVC List
on the bottom screen.
To modify the VC, click a VC from the Current ATM PVC List to display the
parameters of the VC. Change its parameters and click the Modify button.
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After creating an RFC1483 Routed VC, click LAN Setup to set-up the router’s
Ethernet IP address.
 After changing the IP address, click Apply to display the following screen.
The Change & Reboot button allows you to use the new IP address and reboot
the router immediately. The Change button allows using the IP address
immediately but you need to save the setting by clicking Save & Reboot on
the Basic menu bar. To use the Web Browser, make sure you change the PC’s
IP address.
For example, to change the VC 0/34 from Mode RFC1483 Bridged to Mode
RFC1483 Routed, follow the steps below.
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