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Anonymous denied connections!

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Anonymous denied connections! - 3.Mar.2005 6:26:00 PM   


Posts: 6
Joined: 3.Mar.2005
Status: offline
Ok guys, heres the situation

I have ISA2004 Std detup in a unihomed config. I only want it as a Web proxy upstreaming to another proxy product as I have other firewall on the network performing the firewall tasks

I have configured an access rule to allow all requests from Internal to External

In "Networks" I have configured Internal to be my subnet that has my web proxy clients in it. I have Enabled Web proxy clients for this network group on port 80. I have also setup "Require all clients to authenticate using Basic Authentication. (NT4.0 Domain)

I have then setup Web Chaining to the upstream proxy and have set this to redirect all requests (http and https)as port 8080.

Everything is working fine, and my web proxy clients can access the internet over http and https. HOWEVER and this is the strange thing

When a client accesses a website I get a load of Anonymous denied connections in the web proxy log.

The first connection from the client shows the client IP, username and that it has authenticated ok, it shows the rhost and r-ip as the upstream proxy. It then shows 4-5 anonymouse connections from the same client IP with the remote host being the URL of the internet site but the RIP being the ISA server. As this si an anonymouse connection it denies the packet.

I dont think this is causing any major problems, but it defo doesn't look right..Does anyone know why this is happening and if it is actaully causing problems and if I can change or do anything to resolve it



[ March 03, 2005, 06:28 PM: Message edited by: laney0906 ]
Post #: 1
RE: Anonymous denied connections! - 7.Mar.2005 11:17:00 AM   


Posts: 4
Joined: 4.Mar.2005
From: Alfreton Derbyshire
Status: offline
Standard ISA connection will try at least 2 anonymous connections to a site before it tries authentication.

In theory you should get at least 2 anonymous connections per access is my belief on this.

(in reply to laney0906)
Post #: 2

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