R2#sh run int s 1/2
Building configuration...

Current configuration : 172 bytes
!
interface Serial1/2
 ip address 180.40.7.2 255.255.255.224
 ip rip triggered
 ip rip authentication mode md5
 ip rip authentication key-chain Prob4
 clockrate 64000
end

R2#
RACK98AS>2
[Resuming connection 2 to r2 ... ]

R2#
RACK98AS>3
[Resuming connection 3 to r3 ... ]

R3#sh run int s 1/2
Building configuration...

Current configuration : 155 bytes
!
interface Serial1/2
 ip address 180.40.7.3 255.255.255.224
 ip rip triggered
 ip rip authentication mode md5
 ip rip authentication key-chain Prob4
end

R3#