Cabletron Systems STS16-20D Manuale Utente

SmartStack STS16-20D/STS16-20R Token Ring Switches Installation and User Guide

Switch Configuration

This function disables address learning of source and/or destination addresses at 
specified ports on an SmartStack STS16-20D/STS16-20R. Port security totally 
blocks (secures) these ports. Port security mode is used in conjunction with port 
filtering.

 Configure a port security mode on a port and then use “allow” filters to 

selectively control traffic through that port.

For instance, if you only want one or some small number of addresses to be able to 
send from a specific port, you can block all source addresses by secure source at 
that port and then use port filtering (as explained in the previous sections) to 
selectively allow specific addresses to send from that port.

There are four address security choices:

•

—No security mode is defined for a port. This is the default.

•

—Block all source addresses, except those allowed by 

a configured filter.

•

—Block all destination addresses, except those 

allowed by a configured filter.

•

—Block all source and 

destination addresses, except those allowed or forced by a configured filter.

To open this screen from the main menu, select Configuration 

→

→

→

→

. Then select Configure Port Security Mode...