Cabletron Systems 1800 User Manual

Configuring IP Interfaces

9-9

IP Interface Configuration

This function will only work if there is at least one numbered interface in the 
device. If there isnÕt one, all unnumbered interfaces will remain disabled until a 
numbered interface is added.

If you have upgraded your Þrmware to version 4.0, then the default value for IP 
interfaces that have already been conÞgured is No. If you are adding a new 
interface, the default value is Yes. If you select No, you must enter a Source 
Address

 (see deÞnition above).

If you have selected a LAN interface as your Interface Type in the IP Interface 
ConÞguration window, you can use the Secondary button at the bottom of the 
window to access the IP Interface Secondary Address ConÞguration window.

This window allows you to conÞgure up to 15 secondary IP addresses on a LAN 
interface, providing support for multiple IP subnets on the same physical LAN 
segment.

To access the IP Interface Secondary Address ConÞguration window, click on the 
Secondary

 button at the bottom of the IP Interface ConÞguration window. The IP 

Interface Secondary Address ConÞguration window, 

, will appear.

Figure 9-3. The IP Interface Secondary Address ConÞguration