GRE outbound blocked, can't establish VPN connections

charlies224_at_hotmail.com
Date: 01/07/05 

Date: 7 Jan 2005 08:11:52 -0800

Hi,

I have setuped a windows 2000 server running RRAS (have done so
before), however, at one of the location, the VPN connection just
refuse to get established.

I setuped the RRAS on the server and tested with a machine on LAN and
it worked.

I then forwarded TCP/UDP port 1723 to the RRAS server and try to
connect with a machine from a remote location. However, the client hang
at Verifying username/password... then I get Error 721: the remote
computer is not responding on client side.

On the server side, I get the following message:

Event Type: Warning
Event Source: RemoteAccess
Event Category: None
Event ID: 20049
Date: 1/7/2005
Time: 10:48:29 AM
User: N/A
Computer: SERVER
Description:
The user connected to port VPN3-13 has been disconnected because the
authentication process did not complete within the required amount of
time.

At first, I believe my equipments do not support IP Protocol 47, hence
I did a PPTP Ping test with pptpsrv on the server and pptpclnt from the
client side and everything looks fine. I get the data send from client
at the server. I then do a reverse PPTP Ping and find out that the
server side can not send out the GRE packet.

Is there anyway to go around this and make the VPN connection work?
Charlie

Relevant Pages

  • Re: Remote Access Wizard fails to complete with error in rraslog f
    ... Windows Server 2003 SP2 is also now on the server which was ... Reading VPN Server Name returned OK ... Checking whether RRAS is already running returned OK ... Enabling DHCP client addressing returned OK ...
    (microsoft.public.windows.server.sbs)
  • Re: Can not communicate with other hosts on network
    ... Micro Office Scan client can cause this issue. ... Posting the both client and server routing tables may help. ... Clients can connect to our RRAS server through both PPTP/L2TP and dial-up ... connections and they will be authenticated on the network with no errors. ...
    (microsoft.public.win2000.ras_routing)
  • RE: VPN connection errors
    ... firewall software. ... Error Message: VPN Connection Error 800: Unable to Establish Connection ... Can you successfully create VPN from any Internal client to the SBS's ... Are there any event logs in the SBS server? ...
    (microsoft.public.windows.server.sbs)
  • Re: VPN via Wireless Broadband
    ... I don't know how timing-sensitive VPN connections are. ... Browsing to the User shared folder from the client doesn't work. ... shares on the server and SYSVOL is there and one can use Windows ... How to configure a VPN connection to your corporate network in Windows XP ...
    (microsoft.public.windows.server.sbs)
  • Re: Couple of questions regarding RRAS routing
    ... > Now that I have RRAS working, there are a couple of things I'd like to ... > mount a network drive and backup each server. ... routing decision is made at the client. ... suggest a good hardware router - something small and relatively ...
    (microsoft.public.windows.server.networking)
Loading