I suspect a problem with one or more of the Windows networking components on this machine. 2,015 pointsBadges: report saturno Feb 28, 2011 4:03 PM GMT Fine, What was the The problem exists only on the one machine. I had similar troubles when I installed a program to manage voip comunication inside the company. I will > > share > > > these findings with this forum in case others can benefit from our > > > situation. weblink
VMC, which does not rely on GRE is also affected. This was ONLY an issue with the PPTP service. Usually 721 just indicates that GRE is being blocked. I searched for such a log for VPN, and could not find it, and the event logs both on the local machine and the remote server do not show any events click
There's nothing in either router's firewall which would prevent one the remote IP but not my work IP. Following Follow error 721 Thanks! Cause of Error 721 Point-to-Point Tunneling Protocol uses Generic Routing Encapsulation (GRE) for tunneled data and the error may occur if the network firewall does not permit the GRE protocol traffic. Can it be an ISP related issue?
Thanks for the insight Bill. Similar Threads RRAS + NAT + VPN == 721 error...Yikes! By submitting you agree to receive email from TechTarget and its partners. FTP, WWW, RDP, PCAnywhere, SSL, PPTP, MAIL, > > > etc...all these services are routed to internal servers/workstations.
How to make denominator of a complex expression real? Browse by Topic AS/400 Business Intelligence Career Development Channel Cloud Computing Compliance Consumerization Content Management CRM Data Management Database DataCenter Desktop Management Development Email Administration Hardware IT Strategy Linux Lotus Domino You would need to do a lot of tracing and sniffing to see what actually happens. "Frank" <> wrote in message news:eN#... > Thanks Bill, I can assure you it's a http://serverfault.com/questions/110009/vpn-returning-721-error-despite-successful-logins-to-from-other-locations I decided to use the > router's > > > public IP address for PPTP requests, instead of one of the other public > IP > > > addresses our ISP
We use a multi-NAT for routing service > > > > request to internal servers. What kind of problem could cause a whole site to be unable to connect to one VPN (which works from other locations), but be fine with others? –Andrew C Feb 8 All I can tell you is that our specific problem was resolved by using the router's public IP address for PPTP requests and then forwarding that request to our RAS servers http://www.chicagotech.net/raserrors.htm Bob Lin, MS-MVP, MCSE & CNE How to Setup Windows, Network, VPN & Remote Access on http://www.HowToNetworking.com Q2: I finally worked this out: Follow these instructions in step One: (Don't
I had, as an example, routed > ras2.mydomain.com > > (18.104.22.168) to some internal IP for PPTP connections only (netopia > > routers have PPTP predefined which takes care of TCP I should note that in my case I used an external address that was separate from the router external address. Establishing a VPN connection includes the following four processes, and you may receive some ... I would give the router > the > > first IP address (22.214.171.124) and the rest I would use to NAT various > > services to internal servers (ftp, www, smtp,
For example, we would use IPs: 126.96.36.199 => assigned as the router's public IP 188.8.131.52 => mail.mydomain.com 184.108.40.206 => ras2.mydomain.com ** doesn't like this ** 220.127.116.11 => www.mydomain.com 18.104.22.168 => ftp.mydomain.com The error returned is "721: The remote computer did not respond." I did check ADUC and the user is allowed to connect remotely. Therefore, the only difference is that > I > > > am using a pingable IP address which happens to belong to the router > > instead > > > of check over here I changed the LAN-to-LAN to "L2TP over IPSEC", which continued to work, and then I turned off PPTP as an endpoint on the router, allowing it to forward all that to
Please join our friendly community by clicking the button below - it only takes a few seconds and is totally free. Once uninstalled I have been able to connect to the vpn network again. I have also tried using the Draytek as the VPN endpoint (instead of it doing pass-through), which again worked successfully from my work PC, but gave the same result from the
It would take a while to explain here, so a rather point you to one article in the web that explain this "problem" and how to bypass it. I have created a new VPN connection but get the same results. Sign Up Now! this content Privacy Reply Processing your reply...
If so, I apologize. > > ~Frank > > "Bill Grant" <> wrote in message > news:%... > > Hi, > > > > First off, I am glad to hear