R2#sh run
R2#sh running-config 
Building configuration...

Current configuration : 1272 bytes
!
version 15.4
no service timestamps log datetime msec
no service timestamps debug datetime msec
no service password-encryption
!
hostname R2
!
!
!
!
!
!
!
!
no ip cef
no ipv6 cef
!
!
!
!
!
!
!
!
!
!
no ip domain-lookup
!
!
spanning-tree mode pvst
!
!
!
!
!
!
interface Loopback1
 ip address 172.16.1.1 255.255.255.0
!
interface Loopback2
 ip address 172.16.2.1 255.255.255.0
!
interface Loopback60
 no ip address
 ipv6 address 2001:DB8:CAFE:60::1/64
!
interface Loopback61
 no ip address
 ipv6 address 2001:DB8:CAFE:61::1/64
!
interface GigabitEthernet0/0/0
 ip address 192.168.25.1 255.255.255.0
 duplex auto
 speed auto
 ipv6 address 2001:1111:BD68:64::1/64
!
interface GigabitEthernet0/0/1
 no ip address
 duplex auto
 speed auto
 shutdown
!
interface Serial0/1/0
 ip address 192.168.99.2 255.255.255.252
 ipv6 address 2001:ABCD:BEEF:10::2/64
!
interface Serial0/1/1
 no ip address
 clock rate 2000000
 shutdown
!
interface Vlan1
 no ip address
 shutdown
!
ip classless
ip route 192.168.99.4 255.255.255.252 192.168.99.1 
ip route 192.168.1.0 255.255.255.0 192.168.99.1 
ip route 209.16.20.224 255.255.255.248 192.168.99.1 
!
ip flow-export version 9
!
!
!
banner motd ^CSTOP. Authorized Access Only!^C
!
!
!
!
!
line con 0
!
line aux 0
!
line vty 0 4
 login
!
!
!
end