Hello World,
I have a T1 circuit installed into a 1941 router and from the router I can ping the external DNS 4.2.2.2, but from the internal PC I cannot ping outside, Attached is my config and I hope that someone is able to see something that I am not able to see.
I have a laptop hanging off of GI0/0 with an address of 10.10.10.2 and its gateway of 10.10.10.1, again I can ping from the router to the outside, but not from the PC to the internet.
interface GigabitEthernet0/0
description $ETH-LAN$$ETH-SW-LAUNCH$$INTF-INFO-GE 0/0$
ip address 10.10.10.1 255.255.255.0
no ip redirects
no ip unreachables
no ip proxy-arp
ip nat inside
ip virtual-reassembly in
no ip route-cache
duplex auto
speed auto
no mop enabled
!
interface GigabitEthernet0/1
description $ES_LAN$
ip address y.y.y.y 255.255.255.248
no ip redirects
no ip unreachables
no ip proxy-arp
ip nat inside
ip virtual-reassembly in
no ip route-cache
duplex auto
speed auto
no mop enabled
!
interface Serial0/0/0:0
ip address x.x.x.x 255.255.255.252
ip nat outside
ip virtual-reassembly in
no cdp enable
!
ip forward-protocol nd
!
ip http server
ip http access-class 23
ip http authentication local
ip http secure-server
ip http timeout-policy idle 60 life 86400 requests 10000
!
ip nat inside source list 100 interface Serial0/0/0:0 overload
ip route 0.0.0.0 0.0.0.0 x.x.x.x
!
access-list 100 permit ip 10.10.10.0 0.0.0.255 any
access-list 23 permit 10.10.10.0 0.0.0.7
