Enterasys Networks CSX6000, CSX5500 Preliminaries, Configuring a Destination MAC Address Filter

CONFIGURING ADVANCED BRIDGING

Bridge Filters

DIAL OUT USING BRIDGE FILTERS

Each type of bridge filter for each operating mode supports a different set of “forwarding actions.” Your particular set up and device configuration will determine which type of filter and forwarding arrangement will be the most useful. For our purposes, we will illustrate what we feel to be the most commonly used filter arrangement: the Destination MAC Address Filter used in Unrestricted Mode.

EXAMPLE: BRIDGE DIAL OUT USING A DESTINATION MAC ADDRESS FILTER

Consider the following situation: you know the destination of a packet, and you want to control its forwarding action. With the use of filters, you can:

•specify a Device List for connection

•specify a Device List for which you would discard the packet

•specify a LAN or WAN for which you would discard the packet

•specify a complete discard of the packet for the entire system

The following example illustrates how to configure a filter when you know the Destination MAC Address. To configure filters in other situations, follow similar principles as you work your way through the CFGEDIT screens. For details on the differences between filters and their forwarding actions, refer to the discussion beginning on page 274.

Preliminaries

Be sure your system’s resources are properly configured. This includes resources, lines and datalinks, if applicable. Refer to the chapter Configuring Resources and Lines for details.

In order to have the CyberSWITCH successfully dial out, you must have the device information properly set up and the dial out number stipulated. Instructions for configuring on-node device entries are included in the section Configuring a On-node Device Database in the Configuring Device Level Databases chapter.

In order to use the remote bridge feature and properly set up filters, you must:

•enable MAC layer bridging

•select your mode of operation (restricted or unrestricted)

Access these configuration elements through CFGEDIT’s Options Menu, Configure Bridging. For our example, we will use the Unrestricted Mode for our Mode of Operation.

Configuring a Destination MAC Address Filter

To configure a bridge filter, you must advance through CFGEDIT’s menus to the Bridge Menu. To do this:

1.From CFGEDIT’s Main Menu, select Options.

2.From the Options Menu, select Bridging.

Central Site Remote Access Switch 283