Filter Br Add - Efficient Networks Router family Command Line Interface Manual

Chapter 10: Bridge Filtering Commands
Input Format
filter br ?
Parameters
None
Response
Lists the supported bridge filtering commands and keywords and a brief description of
their function.

filter br add

Adds a bridging filter to the filtering database. The filter can allow or deny the
forwarding of packets based on the contents of the packets. The command specifies
the position within the packet that is checked and the data that must appear in that
location in order for the packet to match this filter.
Mgmt Class
Security (R/W)
Input Format
filter br add [pos] [data] allow | deny
Parameters
a
<pos>
<byte>
allow
deny
a
Integer, 0 - 127
Example
Example command prevents forwarding of RARP packets across the bridge. The data
at byte offset 12 in each packet is checked and, if the data is hex 8035, the packet is
denied forwarding.
-> filter br add 12 8035 deny
Response
Command prompt.
Page 10-2
Byte offset within a packet.
Hexadecimal number up to 6 bytes.
Allows forwarding of the packet(s).
Denies forwarding of the packet(s).
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Efficient Networks Router family
Command Line Interface Guide
Efficient Networks
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