EXP Computer S200 Configuring the MAC Address Filter Table, Broadcast frames in the LAN network

Bridge Filtering

Configuring the MAC Address Filter Table

Introduction	The MAC Address Filter Table controls which frames are allowed to pass on to
	different links and lets you control proprietary information that you may not want to
	go to another LAN. It is also useful in controlling the unnecessary proliferation of
	broadcast frames in the LAN network.

MAC Address Filter Figure 35 shows the MAC Address Filter Table parameters.

Table Parameters

Node:	Address:	Date:	Time:
Menu: Configure Bridge			Path:
Bridge Parameters
Bridge Link	Parameters
MAC Address	Filter Table

Entry Number

MAC Address

Incoming Source Address Link Action

Outgoing Source Address Link Action

Incoming Destination Address Link Action

Outgoing Destination Address Link Action

Figure 35. MAC Address Filter Table Menu

Categories MAC Addresses can fall into four categories:

•Incoming Source

•Outgoing Source

•Incoming Destination

•Outgoing Destination

Every node (bridge) has one MAC Address Filter Table. Every bridge link can be configured to determine whether or not frames passing on that bridge link are to be filtered according to the entries in the MAC Address Filter Table.

The filter table is examined to see if there is a match. If a match is found (table and frame), additional table parameters determine when to pass or block the frame.

If there is no match, the decision is dependent upon the Bridge Link record to determine whether to pass or block.

Action is then taken on what is specified in this record (pass or block), rather than the filter table, when there is no match to an entry in this filter table.

Note

A Table boot is required to make MAC Address Filter parameters part of an active configuration. Booting is nondisruptive to data or call connections.

66 Bridging