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[FW-1] routing problem



Hello,

i have a strange routing problem happening in a remote office. I recently
had to change ISP's  remotely, so i added the new router to the the spare
third interface and had it plugged in. I changed all the relevant nets and
server ips on the managment console, including the static and hide NAT
objects (rules are automatic). I changed the host address lookup on the
firewall and it's license.

I am able to connect to the firewall, and to any computer within the vpn
behind the firewall. All of the machines behind the firewall can see the
rest of the vpn, but not the internet.

The firewall log shows that the ping and tracert packets are leaving the
firewall ok, and that the addresses are being translated correctly. A
tcpdump on the firewall shows that the ping packets are reaching their
destination and being returned to the firewall. And that's where i loose the
trail.

I have checked ARP and static routes on the firewall and they appear to be
correct.

what could be happening to the return packets?

thanks,

rich

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