[isalist] Re: VPN Authentication w/Radius to Server 2008
- From: Steven Comeau <scomeau@xxxxxxxxxxxxxxxxxx>
- To: "isalist@xxxxxxxxxxxxx" <isalist@xxxxxxxxxxxxx>
- Date: Fri, 11 Sep 2009 12:43:37 -0400
I would guess policy, but I've tried to mimic the 2003 server settings to a "T"
- must be some enhanced Policy setting. Because it works with our 2003 server,
I'm less inclined to think NTLM/LM.
Steve Comeau
Associate Director of IT Rutgers Athletics
83 Rockafeller Road
Piscataway, NJ 08854
732-445-7802
732-445-4623 (fax)
www.scarletknights.com<http://www.scarletknights.com>
[cid:[email protected]]
[cid:[email protected]]
From: isalist-bounce@xxxxxxxxxxxxx [mailto:isalist-bounce@xxxxxxxxxxxxx] On
Behalf Of Thor (Hammer of God)
Sent: Friday, September 11, 2009 12:37 PM
To: ISA Mailing List
Subject: [isalist] Re: VPN Authentication w/Radius to Server 2008
Sounds like a policy setting or logon requirement is getting in the way. Maybe
NTLM/LM settings...
From: isalist-bounce@xxxxxxxxxxxxx [mailto:isalist-bounce@xxxxxxxxxxxxx] On
Behalf Of Steven Comeau
Sent: Friday, September 11, 2009 9:16 AM
To: ISA Mailing List
Subject: [isalist] Re: VPN Authentication w/Radius to Server 2008
I see the connection request in the logs on the DC, even when I try "username"
vs "domain\username", but no reason as to why the credentials are rejected.
This is why I think it's not RADIUS but something easy but with the user
authentication to the domain of the NPS.
Steve Comeau
Associate Director of IT Rutgers Athletics
83 Rockafeller Road
Piscataway, NJ 08854
732-445-7802
732-445-4623 (fax)
www.scarletknights.com<http://www.scarletknights.com>
[cid:[email protected]]
[cid:[email protected]]
From: isalist-bounce@xxxxxxxxxxxxx [mailto:isalist-bounce@xxxxxxxxxxxxx] On
Behalf Of Thomas W Shinder
Sent: Friday, September 11, 2009 11:14 AM
To: isalist@xxxxxxxxxxxxx
Subject: [isalist] Re: VPN Authentication w/Radius to Server 2008
Would be interesting to get a quick NetMon trace to see if the connection
requests are even making it to the RADIUS server.
____________________________________________
TOM SHINDER | Sr. Consultant/Technical Writer
206.443.1117 | SHINDER@xxxxxxxxxxxxxxx<mailto:shinder@xxxxxxxxxxxxxxx>
5701 Sixth Avenue South | Seattle, WA 98108
PROWESS | WWW.PROWESSCORP.COM<http://www.prowesscorp.com/>
____________________________________________
From: isalist-bounce@xxxxxxxxxxxxx [mailto:isalist-bounce@xxxxxxxxxxxxx] On
Behalf Of Steven Comeau
Sent: Friday, September 11, 2009 9:33 AM
To: isalist@xxxxxxxxxxxxx
Subject: [isalist] Re: VPN Authentication w/Radius to Server 2008
No, which is rather odd, unless I'm looking in the wrong place. I've checked
the System, Application, and even the NP&AS logs.... I have 4 errors in the
NP&AS Server Role Event log, but that was what I expected from fiddling with
the RADIUS Server setup (Invalid RADIUS client).
Steve Comeau
Associate Director of IT Rutgers Athletics
83 Rockafeller Road
Piscataway, NJ 08854
732-445-7802
732-445-4623 (fax)
www.scarletknights.com<http://www.scarletknights.com>
[cid:[email protected]]
[cid:[email protected]]
From: isalist-bounce@xxxxxxxxxxxxx [mailto:isalist-bounce@xxxxxxxxxxxxx] On
Behalf Of Thomas W Shinder
Sent: Friday, September 11, 2009 10:06 AM
To: isalist@xxxxxxxxxxxxx
Subject: [isalist] Re: VPN Authentication w/Radius to Server 2008
Do you see anything in the Event Viewer related to these authentication
attempts on the NPS machine?
Thanks!
Tom
____________________________________________
TOM SHINDER | Sr. Consultant/Technical Writer
206.443.1117 | SHINDER@xxxxxxxxxxxxxxx<mailto:shinder@xxxxxxxxxxxxxxx>
5701 Sixth Avenue South | Seattle, WA 98108
PROWESS | WWW.PROWESSCORP.COM<http://www.prowesscorp.com/>
____________________________________________
From: isalist-bounce@xxxxxxxxxxxxx [mailto:isalist-bounce@xxxxxxxxxxxxx] On
Behalf Of Steven Comeau
Sent: Friday, September 11, 2009 8:55 AM
To: isalist@xxxxxxxxxxxxx
Subject: [isalist] Re: VPN Authentication w/Radius to Server 2008
Thanks Tom and Jim,
Yes, Jim, it looks like that. Odd thing is, that I can tell the RADIUS works
fine (the client/server piece). However, the 691 error, I think, is the actual
authentication against AD because I keep getting the error that the credentials
are invalid on the domain. When I disable pieces on the NPS, like the actual
RADIUS server, there is no communication between ISA and W2k8 - I get errors I
expect. I've done a lot of Googling last night, and many others have the
RADIUS working, but in my scenario, the credentials just don't seem to be
authenticating against the AD.
I've checked the logs, even the event viewer, and when I disable the RADIUS
Server, again, I see errors I expect, but when all is configured, I don't see
anything in the logs about the rejection of the credentials. I'm sure it's
something very simple that is done differently in NPS, probably additional
checking, but I've tried to mimic the 2003 policies to a T and can't get in.
Steve Comeau
Associate Director of IT Rutgers Athletics
83 Rockafeller Road
Piscataway, NJ 08854
732-445-7802
732-445-4623 (fax)
www.scarletknights.com<http://www.scarletknights.com>
[cid:[email protected]]
[cid:[email protected]]
From: isalist-bounce@xxxxxxxxxxxxx [mailto:isalist-bounce@xxxxxxxxxxxxx] On
Behalf Of Jim Harrison
Sent: Friday, September 11, 2009 12:24 AM
To: isalist@xxxxxxxxxxxxx
Subject: [isalist] Re: VPN Authentication w/Radius to Server 2008
Gecher RADIUS logs.
They're in the same place they were on WS03.
Does your RADIUS configuration look like this?
[cid:[email protected]]
From: isalist-bounce@xxxxxxxxxxxxx [mailto:isalist-bounce@xxxxxxxxxxxxx] On
Behalf Of Steven Comeau
Sent: Thursday, September 10, 2009 6:55 PM
To: isalist@xxxxxxxxxxxxx
Subject: [isalist] VPN Authentication w/Radius to Server 2008
Our ISA 2006 box is not on the domain, so we use RADIUS to authenticate VPN
users against the Domain. We've been successfully using RADIUS on a Win2003
Server without issue for quite some time now, but I'm now transitioning to
Server 2008 and am having a bear of a time with Authenticating users via VPN.
All seems to be fine on the actual RADIUS server/client communication, but it
appears that NPS on Server 2008 (the IAS replacement) keeps giving me the 691
Error (bad username/password) when I try to VPN. It appears that NPS on Server
2008 can't authenticate users against the Active Directory.
I know this isn't really an ISA issue, but if anyone has any help or documents
they can point me to, that would be excellent. I've done the MS one on adding
the domain\ before the username, but that didn't solve the issue. Anyone have
NPS configuration issues with VPN and experience with solving them?
Thanks.
Steve Comeau
Associate Director of IT Rutgers Athletics
83 Rockafeller Road
Piscataway, NJ 08854
732-445-7802
732-445-4623 (fax)
www.scarletknights.com<http://www.scarletknights.com>
[cid:[email protected]]
[cid:[email protected]]
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