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Vpn Error 721 The Remote Computer Did Not Respond

However, I am having trouble understanding your reply. Send me notifications when members answer or reply to this question. Everything works perfectly, > > EXCEPT PPTP (VPN) connections. You may also need to check the available ports for your firewall. check my blog

We > > > have approximately 32 public IP addresses, hence why we use Multi-NAT > for > > > routing public services to internal servers. They both have their own > > separate WAN connection (we use a lot of bandwidth, hence the need for two > > WAN connections). If you use IP mapping, the client sends the packet to a pool IP which is mapped to the RRAS server's LAN IP. I will > share > > these findings with this forum in case others can benefit from our > > situation.

But it can > also result from a reply from the server came from a different IP (ie > different from the IP address the client used to send). ISA server software Monitoring & Admin Reporting Security Services Featured Products Featured Book Order today TechGenix Sites The leading Microsoft Exchange Server 2010 / 2007 / 2003 resource site. The type of network they form with their clients is a > > > Bridged > > > > network.

Once uninstalled I have been able to connect to the vpn network again. Remote computer did not respond. Can a Bridged network be the reason PPTP struggles when NATed to an assigned IP rather than when using the router's IP? VMC, which does not rely on GRE is also affected.

But the reply goes through the same channel as above, so the reply doesn't have this IP in the packet. This is how video conferencing should work! We'll email youwhen relevant content isadded and updated. U need to configure network firewall to permit the GRE (Generic Routing Encapsulation) protocol 47 (if u use the same).

Login. So, your external client sends a VPN request to the external IP. Any ideas what might be wrong? Error 721.

You need to allow port 1723 TCP for PPTP and GRE, IP Protocol 47. 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 Everything works perfectly, > > > EXCEPT PPTP (VPN) connections. Port 47 (tcp or udp) has nothing to do with VPN.

First let me explain the problem. > > > > The Problem: > > > > It can take up 6 retries for any remote user to successfully created a > click site share|improve this answer answered Feb 9 '10 at 9:23 Andrew C add a comment| Your Answer draft saved draft discarded Sign up or log in Sign up using Google Sign Related Posts 0x000000f4 What is Error Code 0x000000f4? Now that you use a > fixed IP, it always works. > > Incidently, you do not need to forward port 47.

A Virtual Private Network (VPN) is a service that creates a secure, virtual network on top of public networks such as the... Esker" mean? This software had installed another network interface and that was the problem. E-mail: Submit Your password has been sent to:[email protected] tech target logo About Us Contact Us FAQ Community Blog TechTarget Corporate Site Terms of Use DMCA Policy Privacy Policy Questions & Answers

That totally makes sense. 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 We'll let you know when a new response is added.

I had, as an example, routed > ( to some internal IP for PPTP connections only (netopia > routers have PPTP predefined which takes care of TCP port 1723 &

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Cisco VPN Error 31 Certificate Won't Install A certificate is a data file issued by a certification authority (local or remote) to an individual or organization to identify them... We use a multi-NAT for routing service > > > > request to internal servers. Thanks. Try this, and give us some feedback and more info in case it doesn't resolve your issue.

The only downside is that one end is a dynamic IP address, so the IPSEC doesn't work, so it's unencrypted now. 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 The Generic Routing Encapsulation protocol is used along with Point-to-Point Tunneling Protocol to create virtual private networks between the server and the client or between the clients. We have struggled with this for a year now.