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Cisco NAT Question

Hey all,

This one has me a little stumped, I have two Cisco routers configured as below: I have all of the correct NAT command and NAT is working fine for Router A, but anything coming from Router B

192.168.3.x is not getting NAT'd. I made sure that I have access-list 1 permit 192.168.3.0 0.0.0.255 as I do for 192.168.1.0 in order to process NAT.

Any ideas why Router B can not NAT out Router A?

Router A

Ethernet 1 192.168.1.1 255.255.255.0 nat inside Serial 0 nat outside

Router B Ethernet 1 192.168.1.254 255.255.255.0

Ethernet 2 192.168.3.1 255.255.255.0

Reply to
rstevens
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Kinda hard to say without seeing a bit more of the configs - can you post full (sanitised if necessary) configs for routers A & B? Having said that,...

I'd be looking at ACLs and routing first of all. Can you ping

192.168.1.1 from 192.168.3.1 for example? What do you see if you do a debug on router A for NAT? Can you consider NAT on router B to overload 192.168.3.0/24 onto 192.168.1.254?
Reply to
Al

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