View Single Post
  #3 (permalink)  
Old 05-16-2008, 02:32 PM
Rob
 
Posts: n/a
Re: Novice trying to setup VPN on XP with Linkys Router
Al,

I am having a different issue. I am getting error 800 when trying to login
via vpn. I can log in from a different computer but this one will not let me
so I know it is not the server. I have tried to remove the vpn connection
and add it back with no luck. My Windows Firewall is turned off so I know it
is not that. Is there anything else that coud be blocking it on the laptop?

Any help would be appreciated.

Rob

"Sooner Al [MVP]" wrote:

> "Darleen" <dkimbrell@sbcglobal.net> wrote in message
> news:784a952b-6d92-41e6-b66d-63a491fd50f3@59g2000hsb.googlegroups.com...
> >I have a Desktop at my office connected to the Internet via DSL with a
> > Static IP address. The modem is connected to a wireless router. We
> > have several laptops in the office and they all connect wirelessly to
> > this desktop in order to use it's hard drive space, printers, etc...
> > This office network is configured using Windows Workgroups and it
> > works fine.
> >
> > I am trying to now connect to our office's network remotely (ie from
> > home) and I want to use the Windows XP VPN feature. I've configured
> > an Incoming Connection on the desktop according to all the tutorials,
> > and setup the usernames and passwords I want to allow in. Then on my
> > laptop I've configured a VPN connection to login to the desktop.
> >
> > Everytime I try to login I get Error 800: unable to establish the VPN
> > connection. I temporarily disable every firewall on every connection
> > during setup attempts. Norton has been removed. I've even tried
> > wiring the laptop directly into the modem to see if the problem was in
> > the router, and it still didn't work. I can't figure out what is
> > wrong! Can anyone suggest things for me to troubleshoot? I'm a
> > novice at IP addresses and this type of networking, so I don't really
> > know where to start.
> >
> > Here are my settings:
> >
> > Remote connection computers (laptops):
> > HP laptops with Windows XP that connect to various ISP's when on the
> > road and always with dynamic ISPs
> >
> > Desktop at office to connect into:
> > Windows XP Professional
> > Router is Linksys WRT54GS and the Internet type on the router's web
> > interface is set to Static IP
> > Modem is DSL (cavtel.net, brand Zhone)
> > Local IP Address is 192.168.1.1
> > Internet IP address is 76.160.85.164 (static IP from our ISP)
> > Internet default gateway is 76.160.85.129
> > DNS 1 is 64.83.0.10 (have no idea what this is used for)
> > DNS 2 is 64.118.139.49 (have no idea what this is used for)
> >
> >
> > My VPN connection on the desktop is set to connect to:
> > 76.160.85.129. Is this right? Do we use the gateway IP address here
> > or the Internet IP address here? I've tried both actually, neither
> > works. And under properties for this VPN connection - I've accepted
> > most defaults, including letting TCP/IP obtain IP & DNS
> > automatically. Is this right?
> >
> > I've verified that the password and usernames match between the
> > Incoming Connection users specified on the desktop and my laptop VPN
> > connection.
> >
> > Can anyone steer me in the right direction?
> >
> > Thanks
> > Darleen

>
> This may be a problem with port forwarding on the office Linksys router. You
> need both TCP Port 1723 (PPTP) and GRE Protocol 47 traffic to pass through
> the router. Linksys generally calls that "PPTP Pass Through". Look in the
> router config pages. You can test this by running the test detailed in the
> "PPTP Ping" and "VPN Traffic" sections on this page...
>
> http://technet.microsoft.com/en-us/l.../bb877965.aspx
>
> If the router does not pass GRE Protocol 47 traffic your options include (in
> no particular order)...
>
> * Update the router firmware from the manufacturer to see if that fixes the
> issue.
> * Replace the router with a router that is known to pass GRE Protocol 47
> traffic.
> * Flash the router with third-party firmware like DD-WRT that supports PPTP
> VPN.
> * Purchase a VPN end-point type router that supports PPTP, IPsec/L2TP or SSL
> VPN types.
> * Use an alternative VPN like OpenVPN, SSL-Explorer or a Secure Shell (SSH)
> connection.
>
> To call the VPN server from home, and assuming port forwarding is working
> correctly you use the public IP of the router.
> --
>
> 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
>

Reply With Quote