Re: VPN connection problem



I think 800 messages mean that the udp 47 is being blocked. Just
because a router says it is up to date and supports pptp does not mean
that it does. You could test making your external nic the dmz in the
router.

Does the server respond to vpn connections internally? Easy to check
with a laptop that is not a member of the domain.

bborovan@xxxxxxxxx wrote:

>Hello:
>
>I am attempting to setup a VPN for our Windows 2003 SBS using PPTP. I
>setup a connection to the server and keep getting the following error
>in the connection log:
>
>[cmdial32] 11:59:26 04 Pre-Connect Event ConnectionType = 1
>[cmdial32] 11:59:26 06 Pre-Tunnel Event UserName = <My UserName> Domain
>= <my domain> DUNSetting = Connect to Small Business Server Tunnel
>DeviceName = TunnelAddress = <valid domain name>
>[cmdial32] 11:59:26 20 On-Error Event ErrorCode = 800 ErrorSource = RAS
>[cmdial32] 11:59:29 19 On-Cancel Event
>
>The firewall to our server forward port 1723 and firmware is upgraded
>to support PPTP protocols. The connection used to work, but for some
>reason, no longer does and i cannot explain why.
>
>Also, when I trace packets using Ethereal (similar to tcpdump) no
>traffic is going through port 1723 on my client computer. (I know
>Ethereal and the connection is working, since when i telnet to port
>1723 on my server, it connects and it detects it). Incidently no
>traffic trough IP/Sec port 500 either.
>
>The firewall on my client computer is also off, and I have tried
>reinstalling the PPTP client a number of times with no luck.
>
>Other client computer appear to work. Any ideas on what could be
>wrong?
>
>Thanks,
>Brent
Jim B. SBS MVP
I don't have much to say but it can be found here
http://msmvps.com/bgb/
.



Relevant Pages

  • Re: Remote Desktop Error Message
    ... make sure the port 3389 point to the host computer. ... So - on the client computer I run "remote connection" ... If the client computer is hooked into a router before the cable modem, ...
    (microsoft.public.windowsxp.work_remotely)
  • Re: How can I tell if a PPTP connection is initiated?
    ... I already had the ISP open port 1723 and ip 47. ... PPTP also? ... > I will suggest to check the router settings and make sure TCP Port 1723, ... >> Trying to get a VPN connection to work from outside our network. ...
    (microsoft.public.win2000.ras_routing)
  • VPN connection problem
    ... I am attempting to setup a VPN for our Windows 2003 SBS using PPTP. ... setup a connection to the server and keep getting the following error ... The firewall to our server forward port 1723 and firmware is upgraded ... The firewall on my client computer is also off, ...
    (microsoft.public.windows.server.sbs)
  • RE: Remote Web Workplace
    ... In order to allow a remote desktop connection to a client computer through ... Once the connection is established on port 4125, ...
    (microsoft.public.windows.server.sbs)
  • Re: PPTP Connection?
    ... there's no problem with the port 135 packets. ... Can you access the AD through the PPTP connection? ...
    (microsoft.public.exchange2000.general)