DGS-6604 m neighbor filter-list
CLI Reference Guide
446
neighbor filter-list
Use this command to create a BGP filter. Use the no form of the command to
disable this function.
neighbor {IP-ADDRESS | PEER-GROUP-NAME} filter-list AS-PATH-LIST-NAME {in | out}
no neighbor {IP-ADDRESS | PEER-GROUP-NAME} filter-list AS-PATH-LIST-NAME {in | out}
Default Disabled
Command Mode Router configuration
Usage Guideline This command specifies an access list filter for updates based on BGP
autonomous system paths. Each filter is an as-path access list based on
regular expressions.
Each neighbor can only have 1 in and 1 out access list.
Example The following example shows how to configure the BGP neighbor with IP
address 172.16.1.1 to not send advertisements about any path which is through
or from the adjacent autonomous system 123:
Verify the settings, in User Exec Mode, by entering the show ip protocols bgp
command.
Syntax Description
IP-ADDRESS Specifies the IP address prefix.
PEER-GROUP-NAME The name of a Border Gateway Protocol (BGP) peer group.
AS-PATH-LIST-NAME The name of an autonomous system path access list. Define this access list with
the ip as-path access-list command.
Switch(config)# ip as-path access-list myacl deny _123_
Switch(config)# ip as-path access-list myacl deny ^123$
Switch(config)# ip as-path access-list myacl permit .*
Switch(config)# router bgp 65100
Switch(config-router)# network 10.108.0.0
Switch(config-router)# neighbor 192.168.6.6 remote-as 123
Switch(config-router)# neighbor 172.16.1.1 remote-as 47
Switch(config-router)# neighbor 172.16.1.1 filter-list myacl out
To Next Page
Loading...
