NAT loopback - sort of

Oct 05, 2007 0 Replies

Hi,



I have a Cisco 1841 connected to a DSL circuit and two LANs. Fa0/0 is 192.168.101.0/24 Fa0/1 is 172.28.110.0/24 Dialer0 is a /28 over DSL [5.4.3.1 for the sake of argument]



I have a 1:1 NAT on one of the /28s [let's call it 5.4.3.2] to 172.28.110.2.



5.4.3.2 is visible from outside, I can get on to the web interface etc fine. My problem is that the hosts on 192.168.101.0/24 can't see 5.4.3.2. The address is pingable, but I suspect it's the Cisco itself responding to pings rather than 172.28.110.2, as the ping packets never reach
172.28.110.2.

I did try this:



!begin route-map clever-routing permit 30 match ip address 122 set ip next-hop 172.28.110.2 ! access-list 122 permit ip 192.168.101.0 0.0.0.255 host 5.4.3.2 !end


clever-routing is the ip policy route-map applied to Fa0/0.



Can anyone tell me why packets from 192.168.101.0/24 don't arrive at



172.28.110.2?

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