Forward Port Range with one Public IP.

Unanswered Question
Jul 9th, 2007

Hi Everybody:

What is the way to forward a port range to internal ip address and don't break the router internet access?

My situation:

I've a SHDSL connection with 878 (IOS version 12.4) and one public IP.

If I configure:

"ip nat inside source static <private ip> <public ip> route-map VOIP extendable" to do a port range forwarding, the router lost the internet access.

What is the correct way?

Thanks and best regards,


I have this problem too.
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olafmarcos Tue, 07/17/2007 - 11:23

I thought any router does, but in practice, cisco routers need at least 2 public ip addresses for doing. Don't you think is a waste of public ip addresses?

Do you have a working config?


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