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troubleshooting Question

ISA Server 2006 Web proxy issue

Avatar of Mc2102
Mc2102Flag for United States of America asked on
Microsoft Forefront ISA Server
10 Comments1 Solution1595 ViewsLast Modified:

I have the following setup

Workstation <----> ISA Server <----> VPN tunnel <-----> Sonicwall <------> Webserver

From the 'Workstation' I am trying to open a webpage which is running on the 'Webserver' vi HTTP and the page does not open. I can ping and telnet to port 80 on the workstation to the webserver. If I am in the same LAN as the webserver  I can open the page without a problem from any machine but as soon the traffic flows through the ISA server I see an error page saying that Web proxy was not able to reach the host which is of course nonsens because there is other traffic flowing through the tunnel as well. I do not want the ISAServer to do any chaching or anything - I want the ISA server to direclty forward the traffic to the webserver and that is it.

Can someone please help and let me know what I need to change on the ISA server to get that to work?

Thank you

Please see below the error message:
Failed Connection Attempt ISASERVER 3/5/2010 3:51:51 PM
Log type: Web Proxy (Forward)
Status: 10065 A socket operation was attempted to an unreachable host.  
Rule: Internal -> VPN tunnel
Source: Internal (
Destination: Concretio (
Request: GET 
Filter information: Req ID: 0b796958; Compression: client=No, server=No, compress rate=0% decompress rate=0%
Protocol: http
User: anonymous
 Additional information
Client agent: Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.1; Trident/4.0; .NET CLR 1.1.4322; .NET CLR 2.0.50727; FDM; .NET CLR 3.5.21022; InfoPath.2; .NET CLR 3.0.4506.2152; .NET CLR 3.5.30729)
Object source: Internet (Source is the Internet. Object was added to the cache.)
Cache info: 0x0
Processing time: 62921 ms
MIME type:  

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Mc2102Flag of United States of America image

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