Bridge Filtering

MAC Address Filtering Examples

Introduction

This section shows two filtering examples. Figure 32 shows how the source address

 

can be used to filter frames. Figure 35 shows how the MAC Address Filter Table can

 

be used to filter frames by combining multiple source and destination addresses.

First Example

 

 

 

 

 

In Figure 32, the source address (MAC Address represented by A) is used to filter

 

frames passing in or out of the bridge via links 1, 5, and 6 (Figure 32). Frames

 

originating from the station with MAC Address A are to be sent to server B but not

 

server C. Figure 32 shows that for bridge link 1, Incoming Source Address frames

 

with MAC Address A are passed, and Outgoing Source Address frames with MAC

 

Address A are passed on link 5, but blocked on link 6.

 

Source Address

 

 

 

 

 

 

 

 

 

 

 

 

 

 

A

 

 

 

 

 

 

PB S200

Token Ring 1

Incoming

 

Pass

5

 

Source

 

 

Outgoing

 

 

1 Bridge

 

Source

 

 

Pass

 

Outgoing

 

6

Source

 

 

Block

PB S200

 

Token

 

Ring 2

 

 

PB S200

 

Token

 

Ring 3

 

 

B

C

Incoming Source Address: Pass Link 1

Outgoing Source Address: Pass Link 5; Do Not Pass Link 6 (Block)

Figure 32. Example of Bridge Links Configured to Filter Selected MAC Address Frames

How To Configure

the Example in

Figure 32

To configure something similar to Figure 32, complete the Bridge Link record for the bridge and the MAC Address Filter Table as shown in these tables.

Configuring the Bridge Link Record

Parameter

 

Values

 

 

 

 

 

Entry Number

1

5

6

 

 

 

 

MAC Address Filter Action

Pass

Pass

Pass

 

 

 

 

62

Bridging

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EXP Computer S200 manual MAC Address Filtering Examples, First Example, How To Configure Example, Parameter Values