3Com Router User Manual

Features of the 3Com Router Version 1.107
Network protocolIP service■Supports ARP
■Supports Static domain name resolution
■Supports IP Address Unnumbered
■Supports DHCP Server and DHCP relay
■Supports VLAN
■Supports IP Accounting
Non-IP service■Supports Novell IPX protocol, provide RIP and SAP to 
maintain the database of Internetwork routes and service 
information
■Supports DLSw of SNA system, implementing SNA through 
WAN transmission
IP performance■Supports IP fast forwarding
■Supports Van Jacobson...

8CHAPTER 1: 3COM ROUTER INTRODUCTION
Network securityAuthentication, 
Authorization and 
Accounting (AAA) 
service■Provides PPP and login user authentication
■Supports RADIUS, provides RADIUS 
authentication/accounting
■Provides local authentication 
■Supports CHAP and PAP authentication
Firewall■Supports standard access control list
■Supports extended access control list
■Supports interface-based access control list
■Supports time segment based access control list
NAT■Supports the users in LAN to access...

Features of the 3Com Router Version 1.109
Quality of service
(QoS)
Traffic classification 
and flow control■Supports CAR (Committed Access Speed) and packet 
priority, monitoring the network traffic entering ISP
■Supports LR (Line Rate of physical interface) to limit the total 
speed of packet transmission on physical interface
Traffic shaping■Uses buffer and token bucket to support general traffic 
shaping (GTS).
Congestion 
management■Supports FIFO (first-in-first-out queue)
■Supports PQ (priority...

10CHAPTER 1: 3COM ROUTER INTRODUCTION
New Features of the 
3Com Router 1.xNew features have been added to the 3Com Router1.10.
Support New InterfacesE3 and CE3 Interfaces
Both E3 and E1 are part of the ITU-T digital carrier architecture and are used in 
most regions beyond North America. The data transmission speed of E3 is 
34.368
 Mbps and the line code is HDB3. E3/CE3 interfaces support the link layer 
protocols including PPP, HDLC, Frame Relay, LAPB, and X.25, as well as the 
network protocol such as...

New Features of the 3Com Router 1.x11
■Combined with BDR, Frame Relay over ISDN can be taken as the backup 
communication method for Frame Relay.
Multilink Frame RelayThe Multilink Frame Relay (MFR) feature introduces functionality based on the 
Frame Relay Forum Multilink Frame Relay UNI/NNI Implementation Agreement 
(FRF.16). This feature provides a cost-effective way to increase bandwidth for 
particular applications by enabling multiple serial links to be aggregated into a 
single bundle of...

12CHAPTER 1: 3COM ROUTER INTRODUCTION 

2
3COM ROUTER USER INTERFACE
This chapter includes information on the following topics:
■Establish Configuration Environment
■Command Line Interface (CLI)
■User Identity Management
■Basic Configuration and Management of the System
Establish 
Configuration 
EnvironmentThe 3Com Router 1.x supports local and remote configuration, and the 
configuration environment can be established in the following ways:
Local Configuration 
Environment via Console 
PortThe local configuration environment can be...

14CHAPTER 2: 3COM ROUTER USER INTERFACE
Figure 3   Establish a new connection
Figure 4   Select the computer serial port for actual connection
  

Establish Configuration Environment15
Figure 5   Set port communication parameters 
Figure 6   Select terminal emulation type 
3Power on the router to display the self-test information of the router. Press Enter 
after the self-test to display the prompt “Username:” and “password:”. Type in 
the correct username and the password, then enter the system view of Router.
  

16CHAPTER 2: 3COM ROUTER USER INTERFACE
4Enter the command to configure the router or view the running status of the 
router. Enter “?” to get help when necessary. For details of specific commands, 
please refer to the following chapters.
Remote Configuration 
Environment via Async 
Serial PortThe router powers on, then creates a remote configuration environment by 
connecting to the asynchronous serial ports of the router (including 
synchronous/asynchronous serial port, AUX interface, i.e., auxiliary...