VPN help help

[engineer69]

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

 

[Sooner Al]

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
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