From: Budd Lake, NJ, USA
I have an internal Linux box running Apache and Enterprose ISA in integrated mode. Setup DNS with an A record for the internal Linux web server, and ran the web publishing wizard. I cannot connect from the outside at all. The error I get in App event log is that the Web Proxy could not create a packet filter on the external ip address of the ISA server. I know I must be doing something really stupid for this to happen. Can anyone point me in the right direction?
From: Phoenix, AZ USA
In our environment, there is no internal DNS server.
The web publishing rule is configured to publish from an IP address.
Here is the error that is generated when someone attempts to hit a web site behind ISA:
The ISA Server services cannot create a packet filter 188.8.131.52. This event occurs when there is a conflict between the Local Address Table (LAT) configuration and the Windows 2000 routing table. Check the routing table and the LAT to find the source of the conflict.
I was unable to identify any such conflict. Completely formating the drives of the server, and re-installing 2000 and ISA did not fix the issue - so I am assuming there is a caviat in the configuration that I have overlooked.
That IP address for the packet filter, is that the internal IP address of the ISA Server? Are you using private IP addresses on your internal network? If not, you need to, since that's the only way you can publish the server.