W2K server VPN issues!

[Kevin]

Any advice is aprreciated I've read too many white papers
and i'm going crazy.

I have a DC (10.0.1.1) behind a Netopia T1 router
(10.0.0.1) NAT is forwarding public ip to private ip with
PPTP enabled (Netopia says gre is enabled automattically).
RRAS is setup on the DC. I have enabled "grant remote
access" in remote access policies. All users have access
to dial in. When I attempt to access the VPN from home
(connected straight to my cable modem, without the router)
the system gets to "verifying user name and password" then
times out.

Here is where it gets really screwy, when open up the
client (XP)VPN connection click properties go through all
the settings tabs click "OK" then connect the client
authenicates like normal. So this tells me that as far as
router is concerned VPN is getting through, is this
correct?

I've read around and some say you must have two nics to
enable VPN in RRAS, and some say you only need one. Well
i've tried both, when two nics are installed on the system
and i enable VPN i lose the gateway on my primary nic, and
cannot ping from from another workstation. In reading I
understand that vpn in rras will filter only pptp and
l2tp.

Okay this is probablly the longest post ever, but i
appreciate any help. Thanks

 

[Robert L [MS-MVP]]

what's the error code? if you have a router, you just need one nic. It seems
to me more likely NAT/Firewall issue. you may want to use telnet to test it.

--
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Don't send e-mail or reply to me except you need consulting services.
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Robert Lin, MS-MVP, MCSE & CNE
Networking, Internet, Routing, VPN, Anti-Virus, Tips & Troubleshooting on
http://www.ChicagoTech.net
This posting is provided "AS IS" with no warranties.

 

[Kevin]

Error 721

-----Original Message-----
what's the error code? if you have a router, you just need one nic. It seems
to me more likely NAT/Firewall issue. you may want to use telnet to test it.

--
For more and other information, go to http://www.ChicagoTech.net

Don't send e-mail or reply to me except you need consulting services.
Posting on MS newsgroup will benefit all readers and you may get more help.

Robert Lin, MS-MVP, MCSE & CNE
Networking, Internet, Routing, VPN, Anti-Virus, Tips & Troubleshooting on
http://www.ChicagoTech.net
This posting is provided "AS IS" with no warranties.




.

 

[Robert L [MS-MVP]]

quoted from http://www.ChicagoTech.net

Error 721: Remote PPP peer or computer is not responding. If you have tried
many thing other people suggest like rebooting, reloading hardware and
re-installing the VPN or dial in connection, you still get the same problem.
I will suggest to check the router settings and make sure TCP Port 1723, IP
Protocol 47 (GRE) are opened. Also make sure that the router has the PPP
enabled and not firewall block the traffic.

--
For more and other information, go to http://www.ChicagoTech.net

Don't send e-mail or reply to me except you need consulting services.
Posting on MS newsgroup will benefit all readers and you may get more help.

Robert Lin, MS-MVP, MCSE & CNE
Networking, Internet, Routing, VPN, Anti-Virus, Tips & Troubleshooting on
http://www.ChicagoTech.net
This posting is provided "AS IS" with no warranties.