Static NAT ?

[ten]

Is it possible to give a single host two static NATs on the same router?

In other words would this be a valid configuration?

!

ip nat inside source static 192.168.2.10 10.2.5.1

ip nat inside source static 192.168.2.10 172.16.2.3

!

This would be part of a migration strategy to move users away from the 10s network and onto the 172 network.

Therefore the need arisses for 2 staic nats to the same inside address.

Thanks

[thisisshanky]

I think that would confuse the router, so it should not work. Never tried to do this though. A static mapping like this, means the NAT will happen not just for traffic coming from outside to inside, but also from inside to outside. So when packets go from inside to outside from 192.168.2.10,router will be confused as to translate to 10.2.5.1 or 172.16.2.3.

I could be wrong!!

[rais.ahmad]

I wonder why can't we use route-map + NAT to get this done.

Theoretically it should be possible using full NATs entries. If someones comes in from 10 network, full NAT entry can be created and the same cane be done for 172 network. Shouldn't this be the case?

Regards.

[ravirepaka]

Hi Ahmad,

I too believe it can be acheived with the route maps as we have option of dividing the traffic based on the Ip-address,port,and some other parameters