NAT question.


I have cisco 4000 series router, 2 Ethernet and 2 FastEthernet ports.

I have net connected to Fa0. This net is natted to Eth0 public IP address A.B.C.D. A.B.C.D is destination natted to (local server available from public Internet).

Moreover I have net connected to Fa1. This net is natted to Eth1 public IP address X.Y.Z.W

I would like to connect from to A.B.C.D and be redirected to

Is this possible to achieve?

Regards, Jarek

Reply to
Jarek Jarzebowski
Loading thread data ...

Wow, thatis an *old* router! I hope this isn't running in production anywhere!

I'm sure the list can correct me if I am wrong, but I don't think that redirection per se is possible with NAT since NAT translates 1 IP to 1 IP or pool of IP addresses.. Usually redirection happens in L7. Now if you are using the word redirection and really mean translation, then yes, NAT is exactly that. However, I would imagine that you would have to set up some sort of policy-based routing on the router based on your conditions you listed above. Of course that all depends if you can set up policy-based routing to translate your internal IP addresses differently.

I think this is why Cisco came out with zone-based firewalls.

Reply to
Schroeder, AJ

Google for "NAT on a stick".

Reply to
Barry Margolin Forums website is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.