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Windows Error 721

Everything works > perfectly, > > > > EXCEPT PPTP (VPN) connections. We no longer have to retry up to 6 times to successfully connect. Or do you have a dial up connection and a modem configured to answer automatically? We no longer > > have > > > to retry up to 6 times to successfully connect. > > > > > > Conclusion: > > > > > >

All comments welcomed. > > > > > > ~Frank > > > > > > > > > > > > Bill Grant, Aug 27, 2003 #3 Frank Guest This setting is bydefault set to disable.   Did you find this useful? 2 people found this useful. Therefore, the only difference is > that > > I > > > > am using a pingable IP address which happens to belong to the router > > > instead Yes, my password is: Forgot your password? this contact form

All I can > > tell > > > > you is that our specific problem was resolved by using the router's > > public > > > > IP address However, it doesn't like that, I have to use the router's IP > (meaning I have to point ras2.mydomain.com to 208.38.4.101 in our DNS > servers) and then forward PPTP to For example, we would use IPs: 208.38.4.101 => assigned as the router's public IP 208.38.4.102 => mail.mydomain.com 208.38.4.103 => ras2.mydomain.com ** doesn't like this ** 208.38.4.104 => www.mydomain.com 208.38.4.105 => ftp.mydomain.com

Cheers! Port 47 (tcp or udp) has nothing to do with VPN. Dave Roth, Jul 10, 2003, in forum: Microsoft Windows 2000 RAS Routing Replies: 1 Views: 3,302 Bill Grant Jul 11, 2003 PPTP CONNECTION ERROR 721 Todd Gallina, Jul 14, 2003, in Rating is available when the video has been rented.

I am not sure if I am clear on this? More About Us... Can it be > an > > > ISP > > > > related issue? http://www.tech-faq.com/error-721.html 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.

We > have 32 "static" IP addresses from our ISP. 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 By the way, the > > router's > > > IP is the only pingable public IP, not that that should make any > > difference > > > at all. Copyright ę 2002-2015 ChicagoTech.net, All rights reserved.

If so, I apologize. ~Frank "Bill Grant" <> wrote in message news:%... > Hi, > > First off, I am glad to hear you sorted out the problem. http://www.dlink.com/uk/en/support/faq/modems/dsl-modems/dsl-series/why-do-i-get-error-721 So for example, I might use NAT to redirect WWW which would resolve to 208.38.6.104 to an internal IP on port 80. By the way, the > router's > > IP is the only pingable public IP, not that that should make any > difference > > at all. There > have been a few problems with PPTP from time to time with funny error 721 > problems.

That totally makes sense. I decided to use the > router's > > > public IP address for PPTP requests, instead of one of the other public > IP > > > addresses our ISP Sorry, there was a problem flagging this post. Just to clarify.

Watch QueueQueueWatch QueueQueue Remove allDisconnect Loading... Discussions cover Windows 2003 Server, Windows installation, adding and removing programs, driver problems, crashes, upgrading, and other OS-related questions.Real-Time ActivityMy Tracked DiscussionsFAQsPoliciesModerators General discussion VPN and Verify Password Error 721 by What is required > > is > > > IP protocol 47, or GRE. All I can > tell > > > you is that our specific problem was resolved by using the router's > public > > > IP address for PPTP requests and

Why does typography ruin the user experience? This > > was ONLY an issue with the PPTP service. Gleymer Saavedra Pe├▒ata 99,939 views 14:56 ┬┐Como solucionar el error de conexi├│n VPN 800? - Duration: 3:43.

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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 First let me explain the problem. > > > > > > > > The Problem: > > > > > > > > It can take up 6 retries for We use a multi-NAT for routing service > > > > request to internal servers. Carly Salali 103,966 views 24:17 How to Set Up a VPN Connection On Windows XP [ Step By Step ] - Duration: 3:22.

Close Yeah, keep it Undo Close This video is unavailable. Please try again now or at a later time. However, the remote PCs are using the DG834 as their DNS/DHCP/etc. We have approximately 32 public IP addresses, hence why we use Multi-NAT for routing public services to internal servers.

Thank you for helping us maintain CNET's great community. For example, we would use IPs: > > > > 208.38.4.101 => assigned as the router's public IP > > 208.38.4.102 => mail.mydomain.com > > 208.38.4.103 => ras2.mydomain.com ** doesn't like How common is it to use the word 'bitch' for a female dog? 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

So the client is happy. 2. Does the key vector approach in RingCT represent linkability among transactions? Therefore, the only difference is that I > > am using a pingable IP address which happens to belong to the router > instead > > of using one of the However, it doesn't like that, I have to use the router's IP (meaning I have to point ras2.mydomain.com to 208.38.4.101 in our DNS servers) and then forward PPTP to the RAS

Everything works perfectly, > > > EXCEPT PPTP (VPN) connections. This is a widely > held > > > belief (even router manufacturers use it in their documentation), but it > > is > > > false. Like I said, it can take up to 6 retries to successfully connect to our RAS servers (up to 30 retries if the remote user is behind a Linksys router). Any other service will work > perfectly when NATed regardless from which IPs static public IP's they come > in.

A PPTP connection will definitely fail if GRE is > > > blocked at the router. There is a checklist you need to go through too:1. Like I said, it can take up to 6 retries to successfully connect > to > > our RAS servers (up to 30 retries if the remote user is behind a But > this issue is only for PPTP connections.

Privacy Policy Ad Choice Terms of Use Mobile User Agreement cnet Reviews All Reviews Audio Cameras Laptops Phones Roadshow Smart Home Tablets TVs News All News Apple Crave Internet Microsoft Mobile The only downside is that one end is a dynamic IP address, so the IPSEC doesn't work, so it's unencrypted now.