Cisco 2621 router config issue

I've been slamming my head against this for the last few hours, and am hoping I can get some help from you guys. :)

At the moment, I have a Cisco 800 series operating as my main router.

The router in question is a Cisco 2621xm with the ipbasic IOS. FastEthernet0/0 is assigned an IP address of FastEthernet0/1 is assigned an address of

FE0/0 is plugged into the 800 series. That router is my home gateway, and has an IP of

From the 2621xm, I am able to ping the main gateway, as well as external IP addresses. My laptop, which is connected to FE0/1, can not. I assigned it a static IP address of

Any thoughts and hints are much appreciated.


Current configuration : 880 bytes ! version 12.3 service timestamps debug datetime msec service timestamps log datetime msec no service password-encryption ! hostname password ! boot-start-marker boot-end-marker ! enable secret 5 password enable password password ! no network-clock-participate slot 1 no network-clock-participate wic 0 no aaa new-model ip subnet-zero ip cef ! ! ! no ftp-server write-enable ! ! ! ! interface FastEthernet0/0 ip address ip nat outside duplex auto speed auto ! interface Serial0/0 no ip address shutdown ! interface FastEthernet0/1 ip address ip nat inside duplex auto speed auto ! interface Serial0/1 no ip address shutdown ! ip classless ip route ip http server ! ! line con 0 line aux 0 line vty 0 4 password password login ! ! ! end

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Just a thought, what subnet is your Laptop running? I see you have a /

23 as your network for Fe0/1. Can your laptop ping its own gateway?
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The 800series router needs to know where is.

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Brian V

I agree with the above posters, or you can start NATing on the second router as well (which can make things more complicated, but would probably fix the immediate issue). Regardless, the internet gateway router does not know how to get back to the 192.168s.

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And a second thought I had. Will the gateway NAT 192.168 to the internet, especially since it is probably not in its dhcp/nat pool and not directly connected? The OP may need to check the gateway router to ensure this would work.

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Brian was spot on. I needed to add a route to on the 800 router. That fixed everything.

Thanks again!

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