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Problems accessing published webpages from internal net... - 11.Jan.2008 5:22:12 AM

kallsbo

Posts: 3
Joined: 11.Jan.2008
Status: offline

Hi there,

I have a ISA 2006 edge firewall and loads of internal sites and services published.
From the outside it work's great. But when i try to access a published site via it's domain name, like www.mypage.com, it resolves to one of our external ip addresses but then the request is stuck in the isa server and never reaches the web server. How do I get the isa server to route the traffic from the internal network to the server on the internal network?

/Kristofer

Post #: 1

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RE: Problems accessing published webpages from internal... - 11.Jan.2008 11:09:16 AM

spouseele

Posts: 12782
Joined: 1.Jun.2001
From: Belgium
Status: offline

Hi Kristofer,

as a general rule, an internal client should access an internal resource directly, not by looping back through the ISA server to the published instance of it. A well designed split DNS configuration could help to accomplish that.

HTH,
Stefaan

(in reply to kallsbo)

Post #: 2

RE: Problems accessing published webpages from internal... - 14.Jan.2008 3:55:14 AM

kallsbo

Posts: 3
Joined: 11.Jan.2008
Status: offline

Thanks for you reply!

I know that it isn't best practice to do so. But we have a lot of client test sites that is added and then removed all the time. So the last thing we need is to have an other DNS to manage. We hade this working before and we don't know how and we don't know why it stopped working. Any ideas?

/K

(in reply to spouseele)

Post #: 3

RE: Problems accessing published webpages from internal... - 14.Jan.2008 3:05:28 PM

liridon

Posts: 7
Joined: 13.Jan.2008
Status: offline

when your server see that source ip of this reques is in the same subnet, then it just drop that packet, so try to hide your source ip, tell your server that request are coming from the isa server, or the best choice is to split DNS.

_____________________________

Liridon
MCP

(in reply to kallsbo)

Post #: 4

RE: Problems accessing published webpages from internal... - 16.Jan.2008 3:52:42 AM

kallsbo

Posts: 3
Joined: 11.Jan.2008
Status: offline

Came across the stranges thing with this issue. We have several published websites on diffrent servers and a few currently does work but on the other hand some don't! They are all on the same subnet allong with the servers. I can't figure out why this isn't working for all or for none.

/K

(in reply to liridon)

Post #: 5