Re: VPN Error 721
From: ayfloo (andrewyfloo_at_hotmail.com)
Date: Fri, 6 Aug 2004 17:13:35 +0800
I am having the same problem as well. The only thing differ is that I am
using Alcatel SpeedTouch 510i v4 with latest firmware. Even i did configure
the IP protocol GRE 47, but still having the same problem.
I have changed my router from the previous model SpeedStream 5200 (also
having the same problem - error 721) to SpeedStream 5660.
So far, my office ras server only worked on speedstram 5660.
"Bill Grant" <not.available@online> wrote in message
> All PPTP needs is tcp port 1723 . The 500 ports are only required by
> L2tp . Tcp port 47 has nothing to do with VPN at all.
> What usually causes a 721 error is GRE. If GRE (IP protocol 47) is
> blocked, the encapsulated data is blocked, so nothing goes through the
> tunnel. The PPTP pass-through setting should have enabled that.
> Have you forwarded tcp port 1723 from the router to the server's LAN
> Are you connecting to the router's public IP? Is the server's default
> gateway set to the router?
> "Robert L [MS-MVP]" <firstname.lastname@example.org> wrote in message
> > 47 should be IP protocol port.
> > --
> > 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.
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> > Robert Lin, MS-MVP, MCSE & CNE
> > Networking, Internet, Routing, VPN, Anti-Virus, Tips & Troubleshooting
> > http://www.ChicagoTech.net
> > This posting is provided "AS IS" with no warranties.
> > "Need a help" <email@example.com> wrote in message
> > news:firstname.lastname@example.org...
> > >I have just purchased Linksys BEFSX41 VPN/Firewall
> > > router. I have opened the 1723, 47 and 53 TCP/UDP ports.
> > > Also enable PPTP pass through.
> > > I have set up Windows 2000 server routing and remote
> > > access. When I tried to connect from external Windows XP
> > > VPN connection I am getting error 721 while its verifying
> > > user name and password. It does not pass further...
> > >
> > > Please help me!!!
> > >
> > > Thanks.
> > >