Allow traffic between two LAN interfaces

[MikeCaditz]

I have a 2911 router. One interface is configured external (WAN) and two interfaces are configured on separate internal private subnets. What is the configuration to allow all traffic in both directions between the two internal subnets?

[Amit Singh]

Please could you paste the output of "show ip route".

Sent from Cisco Technical Support iPad App

[MikeCaditz]

Corp#show ip route
Codes: L - local, C - connected, S - static, R - RIP, M - mobile, B - BGP
       D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
       N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
       E1 - OSPF external type 1, E2 - OSPF external type 2
       i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
       ia - IS-IS inter area, * - candidate default, U - per-user static route
       o - ODR, P - periodic downloaded static route, H - NHRP, l - LISP
       + - replicated route, % - next hop override

Gateway of last resort is 65.19.57.17 to network 0.0.0.0

S*    0.0.0.0/0 [1/0] via 65.19.57.17
      10.0.0.0/8 is variably subnetted, 3 subnets, 3 masks
S        10.10.10.0/25 [1/0] via 10.10.10.129
C        10.10.10.128/27 is directly connected, GigabitEthernet0/2
L        10.10.10.149/32 is directly connected, GigabitEthernet0/2
      65.0.0.0/8 is variably subnetted, 2 subnets, 2 masks
C        65.19.57.16/29 is directly connected, GigabitEthernet0/0
L        65.19.57.18/32 is directly connected, GigabitEthernet0/0
      172.16.0.0/16 is variably subnetted, 2 subnets, 2 masks
C        172.16.4.0/22 is directly connected, GigabitEthernet0/1
L        172.16.4.1/32 is directly connected, GigabitEthernet0/1

[MikeCaditz]

No ping responses between hosts on G0/1 and G0/2.

Pardon my ignorance but when I issue "debug ip routing" command on console I receive "debug IP routing is on" but then I cannot see any output.

[Thotsaphon Lueangwattanaphong · Accepted solution]

Hi,

    Please let me know how you test. I mean what ip addresses are.

Toshi

[MikeCaditz]

Toshi, your last question caused me to find out what I am doing wrong. The hosts I were using to run my test had the default gateways configured incorrectly to the wrong router. Of course, that is why the routing was not working. After I fixed this, everything works.

Thank you all for your help.

[Thotsaphon Lueangwattanaphong]

Michael,

     Good to know you can fix it. Good job!

Toshi

[jimmysands73_2]

Good to hear.

[Aaron.tremblay@outlook.com]

Your response caused me to verify the PC's default gateway as well and once fixed I too was able to route between networks.