10
MAKING YOUR NETWORK SECURE
This chapter outlines the Port Security and Switch Management Login 
features, explains the key benefits of using these features, and gives 
examples of how and why you would use them in your network.
For detailed descriptions of the Web interface operations and the 
Command Line Interface (CLI) commands that you require to manage the 
Switch please refer to the Management Interface Reference Guide 
supplied in HTML format on the CD-ROM that accompanies your Switch.
Limiting 
Management 
Access by IP 
Address
The Switch 3226 and Switch 3250 can restrict management access to an 
IP address or range of IP addresses using the trusted IP feature.
You can allow an IP address or range of addresses access to one or more 
of the following interfaces:
■ HTTP
■ SSL (HTTPS)
■ SNMP
■ SSH
■ Telnet
Once you enable trusted IP, only those methods and IP addresses that you 
have allowed access will be able to manage the Switch. Attempts to 
access a management interface from un unauthorized addresses or using 
an unauthorized method will be denied.
Before enabling trusted IP 3Com recommends that you add the IP address 
of your management station to the list of trusted IP addresses. 
The trusted IP feature restricts network access to the management 
interfaces of the Switch. You will be able to access the management