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Double translations - possible?

I need to be able to have a host on Network-A to be able to connect to a router on Network-C - with Network-B in the middle.

Is it possible to NAT an IP from Network-A to Network-B - then NAT the resultant Network-B IP to an IP on Network-C?

2 REPLIES
Hall of Fame Super Blue

Re: Double translations - possible?

Hi

Assuming you mean NAT the source IP address then yes this is perfectly possible. You just set up your NAT translations on each router eg

Router A

ip nat inside source static 192.168.5.10 172.16.5.10

Router B

ip nat inside source static 172.16.5.10 10.1.1.5

where

192.168.5.0 is NET A

172.16.5.0 is NET B

10.1.1.0 is NET C

HTH

Jon

Super Bronze

Re: Double translations - possible?

BTW: It's also possible to double NAT on a single router, useful when two networks address space overlaps.

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