Hi, I have inherited a system which I am trying to make work. It consists of two routers each with an ethernet and a bri. For some reason this very straightforward network has some NAT. I guess the NAT was configured as a workaround for some old legacy application and migration to a new network or something.
My problem is that the routers dial and ping each other OK without the NAT (removing 'ip nat outside' from dialer 2) but when this is put back on the traffic doesn't pass. Does the NAT pool address range need to match that of the bri at the receiving end? Am I missing some static routes for the pool address?
Help appreciated.
Router configs summerised with the interesting bits only!
Router1. (Dialing end)
eth 0
ip address 192.168.202.191/24
ip nat inside
dialer 2
ip address 192.128.0.50/24
ip nat outside
ip nat pool NATPOOL 192.168.0.112 192.168.0.112 netmask 255.255.255.0
ip nat inside source list 101 pool NATPOOL overload
ip classless
ip route 90.90.91.0 255.255.255.0 dialer 2
access-list 101 permit ip any any
Router 2 (Receiving end)
eth 0
ip address 90.90.91.216 /24
bri0
ip address 192.128.0.2/24
ip route 0.0.0.0 0.0.0.0 bri0
ip route 90.90.90.90 255.255.255.0 bri0 - not sure why this route is here.