3com 8807 User Guide

Currently, an Switch 8800 Family series switch provides the following three 
measures for remote access:

■

Telnet

■

Security shell (SSH)

■

Simple network management protocol (SNMP)

An Switch 8800 Family series switch provides security control for these three 
access measures to prevent unauthorized users from logging in/and accessing it. 
There are two levels of security controls.

■

The first level is implemented by applying ACLs to filter the users that are to 
connect to the switch. Only authorized users are capable of accessing the 
switch.

At the second level, a connected user can log into the switch only after passing 
the password authentication.

This chapter mainly describes how to configure the first level security control over 
these access measures, that is, how to filter the users logging onto the switch with 
ACL. For detailed description about how to configure the second level security, 
refer to the Getting Started part of this manual.

You can configure ACLs for the users who access the switch through Telnet or SSH 
to filter out the malicious or unauthorized connection requests before the 
password authentication to secure the switch.

You have correctly configured the switch using Telnet or SSH.

Table 181   Configuration tasks

Enter system view

system-view 

- 

Define an ACL and enter ACL view

acl number acl-number [ 
match-order { config | 
auto } ] 

Required. The command 
can only define a 
number-identified ACL