We recently aquired a new Firewall (Netscreen 204) which we configured and prepared to install. We have a Cisco router on the inside of the LAN managing several VLAN's. All workstations point to it and it routes outbound traffic to the Firewall which then passes it to a small internet router.
Once the new firewall was configured we removed the old one and powered up the new one with the same IP address the old one had. A trace route showed traffic stopping at the Cisco. I checked ARP cache and it seemed to still have the old mac address from the previous firewall. So I did a clear arp, but had the same issue. Old Mac address remained. Finally I just gave the new Firewall a new IP altogether and changed the route in the Cisco to point to it instead of to the old IP. Unfortunately that failed as well. ARP table shows 0.0.0.0 0.0.0.0 to the new address with the correct Mac but trace route still shows all traffic stopping at Cisco.
Any help on this would be greatly appreciated!
Once the new firewall was configured we removed the old one and powered up the new one with the same IP address the old one had. A trace route showed traffic stopping at the Cisco. I checked ARP cache and it seemed to still have the old mac address from the previous firewall. So I did a clear arp, but had the same issue. Old Mac address remained. Finally I just gave the new Firewall a new IP altogether and changed the route in the Cisco to point to it instead of to the old IP. Unfortunately that failed as well. ARP table shows 0.0.0.0 0.0.0.0 to the new address with the correct Mac but trace route still shows all traffic stopping at Cisco.
Any help on this would be greatly appreciated!