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PC's on network cannot access internet through WAN

manuelcruz3288
Level 1
Level 1

I have a spare Cisco router 1941 that Ive setup to test with. I'm only using the GI 0/0 and 0/1 ports on it despite the router having a serial card installed which is not being used. I have made the gi 0/0 the internal interface and the gi 0/1 the external. I properly NAT'd the interfaces according to there location and also allowed devices subnet to reach the outside internet with an allow statement. I also finished up with an ip nat inside source list 101 interface gi0/1 overload statement. The device does have a gateway and gateway of last resort. I'm inda lost at this point. I check the nat translations and it looks like it recognizing the devices trying to get out but the cant get out. I atached the show config.

2 Replies 2

Stewart Thomas
Level 1
Level 1

In the document I do not see your access-list. This is the way I normally do it.

Ip access-list extended natlist

deny ip any what ever you inside is.

permit ip any any

route-map dslnat permit 10

match ip address natlist

match interface your outside interface

ip nat inside source route-map dslnat interface gi 0/1 overload.
 

Hi Stewart, thank you for your prompt response. Just after you responded when i was in the server room working on the router i stumbled across the fix to my issue and no it wasnt a layer 1 issue lol. It turns out it was just as easily fixed, my default route was set on the GI 0/1 vs the GI 0/1 gateway. So i changed the default gateway from interface to the ip address of the gateway for the interface GI0/1 and presto! I'm outside on the internet! Thanks for responding again and i will take these notes you mentioned down for future setups.