Please see below, let me know if it's still not clear. Thanks.

Thanks for your reply, Mohammed.

I believe this configuration takes care only of the traffic flowing from B0. I need traffic to B1 to be translated on interface B at the same time.

Hi there,

You can use the same thing with the traffic of B1, according to the match of the route-map the traffic will be NATed:

ip nat pool w.w.w.w w.w.w.w prefix-length y

ip nat inside source route-map b1 pool overload

access-list 2 permit

route-map b1 permit 10

match ip address 2

match interface

HTH,

Mohammed Mahmoud.

This is also clear, but how do I configure NAT on the interface B itself: "ip nat inside" or "ip nat outside" or "ip nat enable" ?

Hi there,

Now i got you, change this statement:

ip nat outside source route-map b0 pool overload

instead of: ip nat inside source route-map b0 pool overload

and do "ip nat inside" for interface B, and "ip nat outside" for interface A and C.

HTH,

Mohammed Mahmoud.

Mohammed, thanks for your reply.

I cannot use IP pools, I need port overloading (NAPT) on each interface. When using "ip nat outside" it only allows you to use an ip pool.

Please see the drawing below. Each line represents the traffic flow, and the arrow represents the interface where each flow should be NATed.

Let me know if you have other ideas.

Thanks again.