ISA 2004 NAT Issues
Posted on 2006-04-06
I have an issue with ISA 2004.
I am running 2 identical sites using CISCO 800 Series ADSL routers.
Both sites have fixed IP addresses and both sites are running what we call in South Africa "uncapped ADSL".
The issue is:
Access to international sites from both servers time out, however if I connect a laptop directly to the routers I do not experience the timeout.
So, the issue would then have to be with the ISA Server.
If I do a traceroute to an international site I am able to get a proper response via a laptop connected directly.
When I do a traceroute from the ISA server I get an destination host unreachable.
When I do the same for a local site (20ms ping vs. 600ms ping) I have no problems.