troubleshooting Question

Static NAT Cisco 2811 Part II (NAT on public interfaces)

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manuel2002m asked on
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I have been trying to set up something on my Cisco 2811.

Basically I need to forward traffic that is coming to me on one of my Public IP addresses to another Public IP address (the last one belonging to a Business partner)

I was experimenting with NAT, it works with Private IP address (when the Hosts and their respective interfaces on the router where on the same subnet)
Please check my last post:

I did that a as a preliminary test, I don't know if NAT will help me with what I'm trying to do now:

Basically one customer will send data to me and I have to forward that to a business partner.
Both, my customer and my business partner have public IPs.
Only one Host on my customer's side and another host on my Business partner's side
The idea is that my customer connects to me and not to my business partner (marketing reasons, tell me about it)
My ISP gave me about 12 IP addresses on a T1; I don’t have control over the T1 router, so nothing can be done there.
I can assign my public IPs to any device on my network.

Anyways, I though that having my Cisco 2811 with one public IP on each interface will do it, setting up a NAT, receiving traffic on one from my BP and forwarding to my Customer through the other interface.
I tried to do NAT, but looks like the NAT has to be done specifying Hosts that are on the same subnet as the router's interfaces.

I can request another T1 in case my second interface has to be on a different public subnet to do this.

Can anyone give me some tips whether or not this can be done? Using NAT or using anything else.

Thanks so much for the help



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