DFS of XP Clients with security = ads

[Olaf Flebbe]

Hi

we experience a serious problem with samba 3.4 und 3.5 with security=ads 
in our own network infrastructure.

The DFS Shares on samba do not work for Windows XP CLients  as expected. 
Expected is that we can cross the DFS junction points (or whatever they 
are called) and the client connects to the server it is redirected to. 
Expected also is that the "DFS" tab in the right click properties on the 
share on the windows client is there. What I see: The symlinks (junction 
points) are there but they cannot be crossed. The DFS Tab is missing.

Interestingly Windows 7 Clients in the same domain work as expected.

A DFS served by an stand alone samba server works (security = server) 
with Win7 and WinXP.

The reason I am posting before submitting an error report is: Is there 
something obvious which I might have overlooked, I have to test or have 
to enable in order to help me (or someone else who might be interested 
in this problem) debug this nasty thing? A quick network sniff showed me 
that the DFS protocol is rather non-obvious to understand. If I remember 
correctly the WinXP client does not even try to speak DFS to the server, 
or fails very early.

Cheers
   Olaf