Re: VPN help help

From: Sooner Al (SoonerAl_at_somewhere.net.invalid)
Date: 01/19/05 

Date: Wed, 19 Jan 2005 07:02:50 -0600

If your talking about PPTP VPN do you have TCP Port 1723 forwarded to the private LAN IP of the
desktop and GRE Protocol 47 traffic enabled on the cable broadband router? Some routers call the
later "PPTP Pass Through" or "VPN Pass Through". Check with your router manufacturers support web
pages or the users manual for help with that. Also not this can be firmware dependent. For example
some versions of firmware kill PPTP Pass Through on my Linksys BEFSR41 while others work just fine.
My Buffalo WBR-G54 simply refuses to pass GRE Protocol 47 traffic at all...:-(

Look at this page for one way to test this...See the "VPN Traffic" section...

http://www.microsoft.com/technet/community/columns/cableguy/default.mspx#EBAA 

-- 
    Al Jarvi (MS-MVP Windows Networking)
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...
"engineer69" <engineer69.1j3t1n@pcbanter.net> wrote in message 
news:engineer69.1j3t1n@pcbanter.net...
>
> Help with my VPN
>
> Hey Techies, I have two PCs. Here is my schematic.
> PC connecting to + Wireless router + cable modem + www
> + Dialup PC(inside my house). I have two connections. In other words. I
> have dialup and cable modem. I have one PC in my house on Dial up. and
> the other is on Cable modem. I have this to practice my WAN networking
> skills. Okay both PCs running WinXP pro. I can Remote Desktop to the
> Dial up PC from My cable modem PC and I can connect a VPN to the Dial
> up PC. But I cannot do the reverse. I cannot from the Dial up PC
> connect a VPN to the cable modem PC. I think it is my router. But I
> have portfowarding set to go to my PC
> with the PPTP service. It works going out but like I said I cannot VPN
> to the cable modem PC from the dial up but i can vpn to the dial up
> from the cable modem. Problem 1.
>
> Problem two; Back to the one that works; The cable to the dial up VPN
> connection works; but how do you share documents. I tried to map a
> drive to the dial up PC and no go! Network path not found it said. But
> i have a vpn connection it said on both ends?? Help!!!!!! me! I am an
> idiot! A failure! help
>
>
> -- 
> engineer69

Relevant Pages

  • Re: Unable to make VPN connection to ISA 2006 Standard
    ... Router and the isa server this nat enabled, then the pptp tunnel will fail? ... If i initialize an vpn connection with a windows client, ...
    (microsoft.public.isa.vpn)
  • Re: Linksys router settings
    ... I had a Linksys router not function like this when I had PPTP and IPSec ... > POrt Range: I've inserted these in when they weren't showing on the UPnP ... >> when set up incoming VPN connection on SBS 2003. ...
    (microsoft.public.windows.server.sbs)
  • Re: VPN connection problem using NTL
    ... I'm not sure about the encapsulation though - we are using a PPTP ... I use PPTP through a Vigor router to connect to a VPN managed by another ... Vigor router at the server site. ...
    (uk.telecom.broadband)
  • Re: How to get VPN working
    ... the test detailed in the "VPN Traffic" section of this article... ... firmware versions simply do not allow GRE Protocol 47 traffic through the router while others do. ... Linksys calls that "PPTP Pass Through" by the way. ... > I managed to get the box pop up to at least try by going to Network ...
    (microsoft.public.pocketpc.activesync)
  • Re: Vpn set up
    ... Some routers enable GRE Protocol 47 traffic with a "PPTP Pass Through" or ... "VPN Pass Through" setting. ... can be highly dependent on firmware in the router. ... >> If you are using PPTP for the VPN, besides opening TCP port 1723 for the ...
    (microsoft.public.pocketpc)