BGP distribute-list prefix

[#1]

Hi all,

Is anybody able to assist with why the below configuraiton does not work? BGP exchanges routes without a problem all the time the distribute list is removed from the config. When I apply the distribute list it blocks all routes, not just those intended in the prefix list.

router bgp 65535
 no synchronization
 bgp log-neighbor-changes
 network 10.18.68.0 mask 255.255.255.0
 neighbor 172.18.2.1 remote-as 65535
 neighbor 172.18.2.1 password ciscobgp
 distribute-list prefix CORE_ROUTES out
 no auto-summary
!
!
!
ip prefix-list CORE_ROUTES seq 5 deny 10.1.1.0/24

Thanks in advance.

Neil

[cadet alain]

Hi,

don't forget that there is an implicit deny all as in ACLs so you need to add an explicit permit:

ip prefix CORE_ROUTES permit 0.0.0.0/0 le 32

Don't forget to do a route refresh with  do clear ip bgp * out

Regards.

Alain

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[#3]

Thanks Alain.