Solved

Error attepting to connect to PPTP VPN on W2K Server running RRAS.

Posted on 2004-04-26
8
274 Views
Last Modified: 2010-04-12
I am trying to implement a VPN PPTP server on Win2K server using RRAS in a workgroup. AD is not installed. The system has 2 NICs. The first one is connected directly to the internet and has a public IP address via DHCP. The second NIC is connected via another ISP using a Netopia router that is mapping public IPs to the private internal addresses it is assigning via DHCP. It has no security. At present this nic has a 192.168.1.27 address and a public address is mapped to it. My problem is when I try to connect using a Win2K pro workstation remotely through the 1st NIC, it begins authentication and then stops responding and gives a 721 error. Please advise.
0
Comment
Question by:rwjean
  • 4
  • 2
8 Comments
 
LVL 11

Expert Comment

by:ewtaylor
Comment Utility
Make sure the firmware on the netopia is up to date.
0
 
LVL 11

Expert Comment

by:ewtaylor
Comment Utility
Also make sure vpn passthrough is enabled on the remote connection router.
0
 

Author Comment

by:rwjean
Comment Utility
The router is utilizing IP maps which map the public IPs to the private internal addresses. So in my case, the public IP is mapped to 192.168.1.27. There is no blocking of ports whatsoever. The machine at that address is wide open.
0
Why You Should Analyze Threat Actor TTPs

After years of analyzing threat actor behavior, it’s become clear that at any given time there are specific tactics, techniques, and procedures (TTPs) that are particularly prevalent. By analyzing and understanding these TTPs, you can dramatically enhance your security program.

 
LVL 11

Expert Comment

by:ewtaylor
Comment Utility
I thought the first nic was connected directly to the internet? You are running no domain just workgroup?
0
 

Author Comment

by:rwjean
Comment Utility
The first nic has a public address via dhcp from Comcast. The second is statically assigned an 192.168.1.27 address and the router does a static IP map to that address.
0
 
LVL 11

Accepted Solution

by:
ewtaylor earned 300 total points
Comment Utility
Are you running service pack 3 or 4 on the client? I wonder if you are connecting via the comcast interface and the server is replying via the netopia interface, the vpn client sees this as a different ip address and drops the packet.  Kind of like this situation
http://support.microsoft.com/default.aspx?kbid=810839
0

Featured Post

Top 6 Sources for Identifying Threat Actor TTPs

Understanding your enemy is essential. These six sources will help you identify the most popular threat actor tactics, techniques, and procedures (TTPs).

Join & Write a Comment

Suggested Solutions

Title # Comments Views Activity
Access License Server from 2 locations 4 68
Sonicwall VPN 17 60
vpn vs direct RDP to SQL box 2 63
ASA AnyConnect tunneling 3 15
Some of you may have heard that SonicWALL has finally released an app for iOS devices giving us long awaited connectivity for our iPhone's, iPod's, and iPad's. This guide is just a quick rundown on how to get up and running quickly using the app. …
I've written this article to illustrate how we can implement a Dynamic Multipoint VPN (DMVPN) with both hub and spokes having a dynamically assigned non-broadcast multiple-access (NBMA) network IP (public IP). Here is the basic setup of DMVPN Pha…
After creating this article (http://www.experts-exchange.com/articles/23699/Setup-Mikrotik-routers-with-OSPF.html), I decided to make a video (no audio) to show you how to configure the routers and run some trace routes and pings between the 7 sites…
After creating this article (http://www.experts-exchange.com/articles/23699/Setup-Mikrotik-routers-with-OSPF.html), I decided to make a video (no audio) to show you how to configure the routers and run some trace routes and pings between the 7 sites…

772 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

10 Experts available now in Live!

Get 1:1 Help Now