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8.4

Cisco NAT - connecting 2 offices to internet via NAT

Asked by kittlej in Network Routers

My corporate office is hooked to my Network Operations Center via a T1 link. This is a private, point-to-point TDM circuit and does not go across the internet. The Corporate office has a Cisco 2620 and our NOC has a Cisco 2620, one on either side of the link. Our corporate office has the network of 192.168.0.0 and the IP of the router's ethernet side is 192.168.0.254. Our NOC has the ip network of 192.168.1.0 and the IP of the router's ethernet side is 192.168.1.254. The serial side of the NOC router is 10.1.1.1 and the serial side of the Corporate office is 10.1.1.2 (I think I could run IP unnumbered between these links, but I just didn't). At our NOC, I also have a Cisco 2620 router that does NAT translation, connecting our NOC to the internet. The serial side of the NOC NAT router is (fake numbers, but representative of the scenerio) 208.10.10.2 and the ethernet side is 192.168.1.1. All PC's on the NOC lan point to 192.168.1.1 for a gateway, and all are able to reach the internet from their desktops. How do I set up the routing statements so that PC's in our corporate office can also access the internet via this NAT box located at our NOC? Can this be done?

Here's a scribble picture.

CORP LAN (192.168.0.0)---[2620]------[2620]-NOC LAN (192.168.1.0)---[2620 NAT]---INTERNET

Any help would be appreciated. Thanks!

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20091021-EE-VQP-81

Cisco NAT - connecting 2 offices to internet via NAT

Asked by kittlej in Network Routers

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