Unable to ping routers G0/0/1 Interface

[darkie24]

Hello Everyone.

I am trying to build a small network and based on my skills i tried setting up 2 routers, but seems like they can not ping each others G0/0/1. Below is my configurations. 

RB:

show run | begin interface
interface GigabitEthernet0/0/0
 ip address 10.128.250.215 255.255.255.0
 ip nat outside
 negotiation auto
!
interface GigabitEthernet0/0/1
 ip address 172.16.0.1 255.255.255.0
 ip nat inside
 negotiation auto
!
interface Serial0/1/0
 ip address 172.16.1.1 255.255.255.0
!
interface Serial0/1/1
 no ip address
 shutdown
!
interface GigabitEthernet0
 vrf forwarding Mgmt-intf
 no ip address
 shutdown
 negotiation auto
!
 --More--         ip forward-protocol nd
ip http server
ip http authentication local
ip http secure-server
ip tftp source-interface GigabitEthernet0
ip nat inside source list 1 interface GigabitEthernet0/0/0 overload
ip route 0.0.0.0 0.0.0.0 GigabitEthernet0/0/0
!
!
!
ip access-list standard 1
 10 permit 172.16.0.0 0.0.255.255
!
!
!
!

RC:

show run | begin interface
interface GigabitEthernet0/0/0
 ip address 10.128.250.214 255.255.255.0
 ip nat outside
 negotiation auto
!
interface GigabitEthernet0/0/1
 ip address 172.16.0.2 255.255.255.0
 ip nat inside
 negotiation auto
!
interface Serial0/1/0
 ip address 172.16.1.2 255.255.255.0
!
interface Serial0/1/1
 no ip address
 shutdown
!
interface GigabitEthernet0
 vrf forwarding Mgmt-intf
 no ip address
 shutdown
 negotiation auto
!
 --More--         ip forward-protocol nd
ip http server
ip http authentication local
ip http secure-server
ip tftp source-interface GigabitEthernet0
ip nat inside source list 2 interface GigabitEthernet0/0/0 overload
ip route 0.0.0.0 0.0.0.0 GigabitEthernet0/0/0
!
!
!
ip access-list standard 2
 10 permit 172.16.0.0 0.0.255.255
!
!
!

[Jon Marshall · Accepted solution]

You can't use the same subnet on each router (172.16.0.x) and expect it to work because each router thinks that subnet is local to it so it will never send the ping across the link. 

Change one of the routers gi0/0/1 interface to use a different subnet eg 172.16.1.x and then try your ping. 

Jon

[darkie24]

This worked. Thank you!

[MHM Cisco World]

Interface g0/0 is connect both router ?

Can i see topolgy ?