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Webcast-Catalyst9k
New Member

Nat Questions

Hi all,

I have a problem with a router cisco 837 on my work. That is the configuration:

1 DSL Wan Interface named ATM0.1 with the external ip Ex: 80.36.25.24 and NAT outside, and the ethernet interface with internal ip ex: 172.26.0.254 and NAT inside.

The nat config is:

ip nat inside source list 102 interface ATM0.1 overload

ip nat inside source static tcp 172.26.0.1 8081 interface ATM0.1 8081

That's work fine if i try to connect with my browser from the external(ex: my house) to my work to the port 8081.

But, doesn`t work if i try to connect from my computer in the office using my external ip and port on the browser. URL ex: http://80.36.25.24:8081. My computer have the ip 172.26.0.53.

Wich are the correct configuration for that work correctly??

2 REPLIES
Blue

Re: Nat Questions

Im not sure I understand what you are saying.

Are you saying that you have no Internet access through that router when you use a machine that sits on the local internal LAN?

If so, have you configured access list 102 correctly? Does it include the IP address of the machine you are using?

New Member

Re: Nat Questions

No, I have acces to internet correctly. The is when i try to connect from the local lan to the http://80.36.25.24:8081. If i use http://172.26.0.1:8081 work fine. All traffic is really on the local lan.

Many thanks,

Pablo

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