Good Morning. I have a query which I have been racking my brains about, and was working on until midnight last night. Driving me mad !!!!
I am at a customers site who has an existing 4.1 firewall with a mail relay server in the dmz (192.168.100.2 using interface 192.168.100.1) and relays mail to an internal exchange server which is ip address 172.17.3.22/16. the connection for this is routed across the firewalls interface (172.18.6.1/24) to an NT server acting as a router (172.18.6.45 to 172.17.1.112/16) and reaches the exchange server no problem. The exchange server has a default gateway of 172.17.1.109 and a static route had been created for 192.168.100.2 to route through 172.17.1.112. Everything works fine. However, when I replace the firewall on the network, built pretty much the same (same IP addresses etc) the only way I can get a connection to the exchange server from the Mail relay server is to change the default gateway to route back through 172.17.1.112. Using its current default gateway and a static route back to the mail relay just does not work - it reaches 172.17.1.112 and seems to get lost in the ether. The firewall is NG FP3, running on Windows 2000. Internet access, mail outbound ( from the exchange server to the mail relay server then onto the internet ) works perfectly. So the static route works on the exchange server itself, it just seems to have a problem in replying..... As I said, it has been driving me mad, and cant see the wood for the trees. Any help would be greatly appreciated. Thanks. ================================================= To set vacation, Out-Of-Office, or away messages, send an email to [EMAIL PROTECTED] in the BODY of the email add: set fw-1-mailinglist nomail ================================================= To unsubscribe from this mailing list, please see the instructions at http://www.checkpoint.com/services/mailing.html ================================================= If you have any questions on how to change your subscription options, email [EMAIL PROTECTED] =================================================
