IOSv ROUTER 15.6.3
R2(config)#router bgp 23
R2(config-router)#neighbor 3.3.3.3
% Incomplete command.
R2(config-router)#neighbor 3.3.3.3 update-source lo0
% Incomplete command.
R2(config-router)#neighbor 3.3.3.3 update-source loopback0
^
% Invalid input detected at '^' marker.
CSR1000v router
R2>enable
R2#conf ter
Enter configuration commands, one per line. End with CNTL/Z.
R2(config)#router bgp 23
R2(config-router)#no sync
R2(config-router)#no synchronization
R2(config-router)#bgp log
R2(config-router)#bgp log-neighbor-changes
R2(config-router)#bgp conf
R2(config-router)#bgp confederation iden
R2(config-router)#bgp confederation identifier 2345
R2(config-router)#bgp conf
R2(config-router)#bgp confederation peers 45
R2(config-router)#neighbor 3.3.3.3 remote-as 23
R2(config-router)#neighbor 3.3.3.3 up
R2(config-router)#neighbor 3.3.3.3 update-source lo0
^
% Invalid input detected at '^' marker.
R2(config-router)#neighbor 3.3.3.3 update-source loopback0
^
% Invalid input detected at '^' marker.
R2(config-router)#neighbor 3.3.3.3 update-source loopback 0
Hello Bahri
Hmm, that’s interesting. Are you sure that you’ve created the loopback and assigned the IP address to it?
Laz