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Web Chaining Slow

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Web Chaining Slow - 11.Jul.2007 1:20:19 PM   
super sub

 

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Joined: 11.Jul.2007
Status: offline
We have a subsidiary site set up to connect to our DMZ via a VPN Tunnel. The network address of the site is set up within "Perimter Network" set on the downstream ISA.  The downstream ISA recevies the Web requests from the client and then using Web chaining passes the request onto the main upstaream ISA Server.
 
The upstream ISA seemingly accepts the web chained requests from the downstream and 'GETs' the requested URL. Therefore in terms of ISA log monitoring all seems well. However, the clients on the Perimeter Network report horrendously slow web browsing, I'm talking almost 2-3 minutes to load the page.
 
I've almost certainly ruled out DNS as the same thing happens when web sites are requested using the IP address. I mention this because most forums state that this performance issue is a typical DNS configuration error on the 'External' interface on the ISA. For info' we have no DNS settings on our external interface on the downstream ISA.

What can be causing this. Are there any quick fixes?

Regards 
Post #: 1
RE: Web Chaining Slow - 18.Jul.2007 8:22:37 AM   
tshinder

 

Posts: 50013
Joined: 10.Jan.2001
From: Texas
Status: offline
Make sure that the front-end ISA Firewall is not restricting access based on location (that is to say, configure the front-end ISA Firewall to allow access to all sites) and do not require authentication on the ISA Firewall.

HTH,
Tom

_____________________________

Thomas W Shinder, M.D.

(in reply to super sub)
Post #: 2
RE: Web Chaining Slow - 20.Jul.2007 2:17:34 AM   
furqananwar

 

Posts: 2
Joined: 28.Jun.2007
Status: offline
may this would helped

http://support.microsoft.com/kb/839510

http://www.microsoft.com/technet/isa/2004/plan/disablenameresolution.mspx

_____________________________

Furqan Anwar

(in reply to tshinder)
Post #: 3

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