I have seen someone put this thread on other forum,but i can't settle the problem.follow is the question.The network has a Catalyst 6500 be a core switch and down link to a Catalyst 2950, and Catalyst 2950 down link to a PIX 515e firewall, as below...
C6500
|
|---(Public Network)
|
C2950
|
|---(Public Network)
|
PIX515e
|-----3 servers on DMZ
|
(Inside Protected Network)
I'm using Static NAT maps addresses of the several servers beside a DMZ port and using PAT for inside network. The problem is that when everything has ran for a few minutes then the servers on a dmz can not reach the public network, the public network can not reach the servers also. I have to clear the ARP cache on a C6500 to let it works again. This problem does not occur with the inside network that is using PAT translation.
