3750 Vlan not routing out to the Internet

[milkboy33]

Hi All,

   Any input is appreciated.

  We hav a very simple setup:

2811 Router <-> 3750 ( with 2 vlans ) <-> Vlan 1 PCs & Vlan 2 PCs

We are running eigrp on the two. There is a default route on the 3750 to the 2811. Vlan 1 PCs can ping out to the internet fine. Vlan 2 PCs cannot. However, Vlan 2 PCs can ping Vlan 1 PCs, the 3750 as well as the 2811.

What could possible be wrong?

Thanks,

Tom

[Thotsaphon Lueangwattanaphong]

Hi,

   Please post the output of commands below

Router2811#show running

Router2811#show ip route

Switch3750#sh ip interface brief

Switch3750#show ip route

Toshi

[milkboy33]

We figured it out. Thanks for replying Toshi. It got me to see an oversight.

The problem was there is an access-list applied on nat on the router. It only allowed our Vlan 1 to nat. I just had to add another rule to permit Vlan 2 and we were good to go. Thanks!

ie.

ip nat inside source list 101 interface Serial0/0/0 overload

access-list 101 permit ip 192.168.1.0 0.0.0.255 any

access-list 101 permit ip 192.168.2.0 0.0.0.255 any