I'd go with #5...

Seriously, I've had a couple of Vista systems where administators lack 
administrative rights.  A wipe-and-rebuild was necessary to fix that.
--------------------------------------
Richard McClary, Systems Administrator
ASPCA Knowledge Management
1717 S Philo Rd, Ste 36, Urbana, IL  61802
217-337-9761
http://www.aspca.org


"Aaron T. Rohyans" <[EMAIL PROTECTED]> wrote on 11/14/2008 12:20:12 PM:

> Could be a number of things really…. I’m assuming you’re using GRE/PPTP?
> 
> 1.                   His provider could be blocking GRE (IP Protocol
> #47).  This would allow the VPN to establish (via PPTP), but no 
> traffic would pass as GRE is being blocked.
> 2.                   His router doesn’t understand what GRE traffic 
> is and is not forwarding it (but again, the VPN gets established b/c
> PPTP rides over TCP port 1723 – which all TCP/IP devices understand).
> 3.                   In the case of IPSec VPNs, he could be using an
> IP address for his physical NIC that overlaps with your corporate 
network.
> 4.                   Your corporate network lacks a valid return 
> route to get back to VPN clients (probably not as you say it works 
> for you just fine – but just throwing it out there).
> 5.                   He’s using Vista and didn’t sacrifice a chicken
> and sprinkle Holy Water over it.
> 
> Hope this helps!
> Aaron Rohyans 
> IT Coordinator, IDC-USA 
> [EMAIL PROTECTED] 
> 317.244.8307 (V) 
> 317.244.4600 (F) 
> 
> From: Evan Brastow [mailto:[EMAIL PROTECTED] 
> Sent: Friday, November 14, 2008 1:07 PM
> To: NT System Admin Issues
> Subject: What could cause this VPN issue?
> 
> Hi guys,
> 
> I have a weird problem and I’m not sure where to start troubleshooting 
it.
> 
> I have a user that bought a new (Vista Ultimate) laptop. I am trying
> to set up a VPN connection for them and have been going back and 
> forth to their house for the better part of the past week trying to 
> get it working.
> 
> Basically, this user connects the same way I do with my laptop at 
> home. Through a wireless router, out to the Internet, in through our
> Netscreen, and gets authenticated via our RRAS server. All IP info 
> is assigned via DHCP.
> 
> For me, I connect via the VPN, and I can then resolve names on the 
> company network and attach to server drives. For him, even though he
> has all the permissions needed, he can’t even resolve his computer 
> name to connect via RAdmin. 
> 
> The connection to the VPN works fine and the status in Network 
> Connections on his laptop indicates that he is connected 
> successfully to the VPN, but I can’t seem to get any DNS services, 
> even though I have it automatically configured to get all IP and 
> general DNS info via DHCP.
> 
> It’s just so strange… the exact same settings work for me, but not 
> him. Could his router be somehow blocking DNS info but allowing him 
> to connect to the VPN? Doesn’t seem like it could. It seems like 
> once he establishes the tunnel, anything should be allowed within that 
tunnel.
> 
> Any thoughts on what to try?
> 
> Thanks,
> 
> Evan
> 
> 
> 
> 
> 
> 

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