Bridging on C1100 between EtherSwitch ports and WAN ports

Bridging on C1100 between EtherSwitch ports and WAN ports

While testing this further, I was able to get the pings to work across the 2900’s. You can check the configurations below :

+--------------+                  +--------------+                  +-------------+
|              |                  |              |                  |             |
|              |                  |              |                  |             |
|              |G0/1         G0/1/0              |G0/0/0        G0/1|             |
| 2900-1       +------------------+ C1121X-8PL   +------------------+ 2900-2      |
|              |                  |              |            G0/1.10             |
|              |                  |              |                  |             |
|              |                  |              |                  |             |
+--------------+                  +--------------+                  +-------------+

2900-1 :

2900-1(config)#do sh run int gi 0/1
Building configuration...

Current configuration : 100 bytes
!
interface GigabitEthernet0/1
ip address 192.168.10.1 255.255.255.0
duplex auto
speed auto
end
2900-1(config)#do sh run | s ip route
ip route 0.0.0.0 0.0.0.0 GigabitEthernet0/1

2900-1(config)#do sh ip arp
Protocol  Address          Age (min)  Hardware Addr   Type   Interface
Internet  192.168.10.1            -   8843.e180.fff9  ARPA   GigabitEthernet0/1
Internet  192.168.10.10           3   8843.e180.dde9  ARPA   GigabitEthernet0/1

2900-2 :

2900-2(config)#do sh run int gi 0/1
Building configuration...

Current configuration : 76 bytes
!
interface GigabitEthernet0/1
no ip address
duplex auto
speed auto
end

2900-2(config)#do sh run int gi 0/1.10
Building configuration...

Current configuration : 103 bytes
!
interface GigabitEthernet0/1.10
encapsulation dot1Q 10
ip address 192.168.10.10 255.255.255.0
end

2900-2(config)#do sh run | s ip route
ip route 0.0.0.0 0.0.0.0 GigabitEthernet0/1.10

2900-2(config)#do sh ip arp
Protocol  Address          Age (min)  Hardware Addr   Type   Interface
Internet  72.163.32.44          127   00ee.abdb.56f3  ARPA   GigabitEthernet0/1.10
Internet  127.0.0.1               -   8843.e180.de21  ARPA   ISM0/1
Internet  192.168.10.1            4   8843.e180.fff9  ARPA   GigabitEthernet0/1.10
Internet  192.168.10.5            5   00ee.abdb.56f3  ARPA   GigabitEthernet0/1.10
Internet  192.168.10.10           -   8843.e180.dde9  ARPA   GigabitEthernet0/1.10

C1121X-8PL :

C1121X-8PL(config)#do sh run int gi 0/0/0
Building configuration...

Current configuration : 148 bytes
!
interface GigabitEthernet0/0/0
no ip address
negotiation auto
service instance 10 ethernet
  encapsulation dot1q 10
  bridge-domain 10
!
end

C1121X-8PL(config)#do sh run int gi 0/1/0
Building configuration...

Current configuration : 89 bytes
!
interface GigabitEthernet0/1/0
switchport access vlan 10
switchport mode access
end

C1121X-8PL(config)#do sh run int vl 10
Building configuration...

Current configuration : 115 bytes
!
interface Vlan10
no ip address
service instance 10 ethernet
  encapsulation default
  bridge-domain 10
!
end

C1121X-8PL(config)#do sh run int bdi 10
Building configuration...

Current configuration : 62 bytes
!
interface BDI10
ip address 192.168.10.5 255.255.255.0
end

C1121X-8PL(config)#do sh ip arp bdi 10
Protocol  Address          Age (min)  Hardware Addr   Type   Interface
Internet  192.168.10.5            -   00ee.abdb.56f3  ARPA   BDI10
Internet  192.168.10.1            6   8843.e180.fff9  ARPA   BDI10
Internet  192.168.10.10           5   8843.e180.dde9  ARPA   BDI10

Results :

2900-1(config)#do ping 192.168.10.10
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 192.168.10.10, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 1/1/4 ms

2900-2(config)#do ping 192.168.10.1
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 192.168.10.1, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 1/1/4 ms