neighbor filter-list
Use this command to set up a BGP filter. This command specifies an access list filter on updates based on the BGP autonomous system paths. Each filter is an access list based on regular expressions.
Use the no parameter with this command to disable this function.
Command Syntax
neighbor (A.B.C.D|X:X::X:X|WORD) filter-list WORD (in|out)
no neighbor (A.B.C.D|X:X::X:X|WORD) filter-list WORD (in|out)
For v4-unnumbered mode:
neighbor WORD filter-list WORD (in|out)
no neighbor WORD filter-list WORD (in|out)
Parameters
A.B.C.D
Address of the BGP neighbor in an IPv4 format
X:X::X:X
Address of the BGP neighbor in an IPv6 format
WORD
Name of a BGP peer group created with the
neighbor WORD peer-group command. When you specify this parameter, the command applies to all peers in the group.
WORD
Name of an autonomous system path access list
in
Filter incoming advertised routes
out
Filter outgoing advertised route
Default
By default, filter list is disabled
Command Mode
Address Family mode and v4-unnumbered mode
Applicability
This command was introduced before OcNOS version 1.3.
Examples
#configure terminal
(config)#router bgp 10
(config-router)#neighbor 10.10.0.34 remote-as 20
(config-router)#address-family ipv4 unicast
(config-router-af)#neighbor 10.10.0.34 filter-list out in
For unnumbered peer, IPv4 unicast mode commands are configured under v4-unnumbered-mode.
(config)#router bgp 100
(config-router)#address-family ipv4 unicast
(config-router-af)#bgp v4-unnumbered-mode
(config-router-v4-unnum)#neighbor eth1 filter-list list2 in
Last modified date: 07-13-2023