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BGP Configuration Commands
6-94 Configuring the Border Gateway Protocol
neighbor distribute-list
Thiscommanddistributestheinformationspecifiedinanaccess‐listtoaBGPneighbor.Before
enteringthiscommand,aneighbororpeergroupmustbeidentifiedbymeansofthe
neighbor
remote-as
orneighbor peer-groupcommand.Also,theprefix‐basedACLmustbeconfigured.
Syntax
neighbor {ip-address | peer-group-name} distribute-list access-list {in | out}
Syntax of the “no” Form
ThenoformofthiscommandremovestheACL‐linkedneighbor:
no neighbor {ip-address | peer-group-name} distribute-list access-list {in | out}
Mode
Routerconfiguration:XSR(config-router)#
Default
Noaccesslistapplied
Example
Thisexampleappliesaccess‐list1toincomingadvertisementsfromneighbor192.168.1.1.Only
routeswhichmatch10.0.0.0/8,11.0.0.0/8or12.0.0.0/8prefixeswillbeacceptedfromtheneighbor.
XSR(config)#access-list 1 permit 10.0.0.0 255.0.0.0
XSR(config)#access-list 1 permit 11.0.0.0 255.0.0.0
XSR(config)#access-list 1 permit 12.0.0.0 255.0.0.0
XSR(config)#router bgp 100
XSR(config-router)#neighbor 192.168.1.1 remote-as 101
XSR(config-router)#neighbor 192.168.1.1 distribute-list 1 in
Note: Perform a clear ip bgp neighbor <IP address> whenever this command is changed.
ip-address
Neighbor’sIPaddress.
peer-group-name
BGPpeergroupbyname.Range:1to64characters.
access-list
ACL,rangingfrom1to199.
in
ACLappliedtoinboundroutes.
out
ACLappliedtooutboundroutes.