VPDN - Win2003 LNS to Cisco LAC

Archived from groups: microsoft.public.windowsnt.terminalserver.connectivity (More info?)

Thanks for the overwhelnilg response. I have spent 3 weeks
on this but I think I have found the solution - another
Microsoft bug. The trick is to get the hotfix which
appears to be a national secret. (See Issue KB829074).

>-----Original Message-----
>I have a Win2003 server (configured as DNS and with RRAS)
>which is to act as a LNS to a VPDN network. The Telco
>provides the NAS and does not support IPSEC or allow
>client to server (pure Microsoft) VPN. Protocol is L2TP.
>I have disabled IPSec on the Windows server
(ProhibitIPSec
>key = 1). The Telco use CHAP. I have the password of the
>RRAS interface stored in reverse encryption via the
Active
>Directory.
>A packet analyzer shows the SCCRQ received by the Windows
>Server and a SCCRP returned. The SCCRP always has a FQDN
>which is not expected by the Cisco LAC and authenticatin
>fails. I am unable to change this. How doI fix this?
>Can I achieve the correct results by IAS? I tried but
>the "Advanced" settings in the Policy seem to be ignored
>as well. Do I need to set Microsoft explicitly to use
MD5
>for CHAP?
>Thanks.
>.
>