RTA#show running-config
router bgp 3
no synchronization
neighbor 172.16.1.2 remote-as 3
neighbor 172.16.20.1 remote-as 1
neighbor 172.16.20.1 distribute-list 1 out
no auto-summary
access-list 1 deny 192.68.10.0 0.0.0.255
access-list 1 permit 0.0.0.0 255.255.255.255
RTA#