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sebastian.lemke
Beginner

NAT same server to different IPs

Hi,

I am trying to implement the following NAT on a Cisco Router:

Server A (10.0.0.1) ----------- Router ------------ WAN

The server A communicates with 2 different networks in the WAN. For each of these two networks, server A must be natted to a different IP, let's say:

1. Server A communicates with network A --> NAT 10.0.0.1 to 172.16.0.1

2. Server A communicates with network B --> NAT 10.0.0.1 to 192.168.0.1

I suppose it won't work, when I just do

ip nat inside source static 10.0.0.1 172.16.0.1 route-map network_A

ip nat inside source static 10.0.0.1 192.168.0.1 route-map network_B

Because the second static NAT overrides the first...

When I do something like "ip nat inside source route-map...", it won't be possible to establish a connection from the outside to the inside. NAT will only work when the connection is established from inside to outside...

How can I implement this? Any ideas?

by the way, it's a

Cisco IOS Software, 2800 Software (C2800NM-ADVSECURITYK9-M), Version 12.4(25g)

1 ACCEPTED SOLUTION

Accepted Solutions
paul driver
VIP Mentor

Hello

ip nat inside source static 10.0.0.1 172.16.0.1 route-map network_A extendable

ip nat inside source static 10.0.0.1 192.168.0.1 route-map network_B extendable

res

Paul

Please don't forget to rate any posts that have been helpful.

Thanks.



kind regards
Paul

Please rate and mark posts accordingly if you have found any of the information provided useful.
It will hopefully assist others with similar issues in the future

View solution in original post

3 REPLIES 3
paul driver
VIP Mentor

Hello

ip nat inside source static 10.0.0.1 172.16.0.1 route-map network_A extendable

ip nat inside source static 10.0.0.1 192.168.0.1 route-map network_B extendable

res

Paul

Please don't forget to rate any posts that have been helpful.

Thanks.



kind regards
Paul

Please rate and mark posts accordingly if you have found any of the information provided useful.
It will hopefully assist others with similar issues in the future

View solution in original post

what u have defined in route-map

Jawad

Jawad

works fine, thanks!

@Jawad: The route-maps contain an ACL, with a permit of the defined source and destination IPs for both connections.