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04-01-2008
| #1 (permalink) |
| | VPN server is not configured to allow Generic Routing Encapsulatio Hi, I am away from home and connected via a public wireless to the internet. (first time, I always connect from home). When trying to conect to internal server via IT connection manager, I get error 806: The VPN connection between your computer and the VPN server could not be completed. The most common cause for this failure is that at least one Internet device (for example, a firewall or a router) between your computer and the VPN server is not configured to allow Generic Routing Encapsulation (GRE) protocol packets. If the problem persists, contact your network administrator or Internet Service Provider. (Error 806) For customized troubleshooting information for this connection I could not find any usefull information on it manager help page. Does anybody know what do I have to do in order to be able to connect successfully? Thank you!! |
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04-02-2008
| #2 (permalink) |
| | Re: VPN server is not configured to allow Generic Routing Encapsulatio As it said, it is GRE issue. You need to make sure GRE port is open for pass through. Or this search result may help. ras error codeError 797 Error 781 Error 783 Error 800 Error 806 - the VPN connection ..... Error 806: a connection between your computer and the VPN server has been ... www.chicagotech.net/raserrors.htm -- Bob Lin, MS-MVP, MCSE & CNE Networking, Internet, Routing, VPN Troubleshooting on http://www.ChicagoTech.net How to Setup Windows, Network, VPN & Remote Access on http://www.HowToNetworking.com "Ana" <Ana@xxxxxx> wrote in message news:E81A86EA-B169-4D13-A9FC-6B3762F46875@xxxxxx Quote: > Hi, > > I am away from home and connected via a public wireless to the internet. > (first time, I always connect from home). When trying to conect to > internal > server via IT connection manager, I get error 806: > The VPN connection between your computer and the VPN server could not be > completed. The most common cause for this failure is that at least one > Internet device (for example, a firewall or a router) between your > computer > and the VPN server is not configured to allow Generic Routing > Encapsulation > (GRE) protocol packets. If the problem persists, contact your network > administrator or Internet Service Provider. (Error 806) For customized > troubleshooting information for this connection > > I could not find any usefull information on it manager help page. > > Does anybody know what do I have to do in order to be able to connect > successfully? Thank you!! |
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04-02-2008
| #3 (permalink) |
| | Re: VPN server is not configured to allow Generic Routing Encapsulatio The PPTP VPN server your trying to connect to is probably behind a firewall/router that is not passing GRE Protocol 47 traffic. PPTP VPN needs both TCP Port 1723 open on the firewall/router and the device needs to be able to pass GRE Protocol 47 traffic. If its a consumer grade router that can sometimes be problematic. Some routers can be enabled by configuring for "PPTP Pass Through" or "VPN Pass Through" or automatically pass GRE Protocol 47 traffic if TCP Port 1723 is opened. Consult the owners manual for the router. Sometimes a firmware upgrade will fix the issue and sometimes not. If the PPTP VPN sever is behind a router on a corporate network contact the network administrators. You can test this by running the tests detailed in the "PPTP Ping" and "VPN Traffic" sections on this page. http://technet.microsoft.com/en-us/l.../bb877965.aspx See the last part of this page for help getting the test software on your Vista PC. http://theillustratednetwork.mvps.or...P/PPTPVPN.html -- Al Jarvi (MS-MVP Windows – Desktop User Experience) Please post *ALL* questions and replies to the news group for the mutual benefit of all of us... The MS-MVP Program - http://mvp.support.microsoft.com This posting is provided "AS IS" with no warranties, and confers no rights... How to ask a question http://support.microsoft.com/KB/555375 "Ana" <Ana@xxxxxx> wrote in message news:E81A86EA-B169-4D13-A9FC-6B3762F46875@xxxxxx Quote: > Hi, > > I am away from home and connected via a public wireless to the internet. > (first time, I always connect from home). When trying to conect to > internal > server via IT connection manager, I get error 806: > The VPN connection between your computer and the VPN server could not be > completed. The most common cause for this failure is that at least one > Internet device (for example, a firewall or a router) between your > computer > and the VPN server is not configured to allow Generic Routing > Encapsulation > (GRE) protocol packets. If the problem persists, contact your network > administrator or Internet Service Provider. (Error 806) For customized > troubleshooting information for this connection > > I could not find any usefull information on it manager help page. > > Does anybody know what do I have to do in order to be able to connect > successfully? Thank you!! |
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