Solved

Routing and Remote Access assign IP address to server

Posted on 2013-12-29
5
548 Views
Last Modified: 2014-01-03
I have found that Routing and remote access  is assigning a 2nd IP address to the server.  This is causing issues internally in that the workstations are seeing the new IP address.

The Reason for RRAS to be installed is for VPN which is working fine.
0
Comment
Question by:Cyber_Junkie
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 2
  • 2
5 Comments
 
LVL 11

Expert Comment

by:John Easton
ID: 39745066
Normally the second IP Address is only visible to the VPN client.  However, as you using ISA / TMG as your firewall.  If so there is a issue with this product where internal clients try to use this second IP Address for web access.

Have a look at the following article on technet forums:  http://social.technet.microsoft.com/Forums/forefront/en-US/2c4e342f-0ab7-4cd7-b007-0f2b0c559704/tmg-vpn-connection-causes-wpaddat-file-to-have-wrong-ip-address-for-proxy-server?forum=ForefrontedgeIA
0
 

Author Comment

by:Cyber_Junkie
ID: 39745117
I did a search for wpad.dat and it was not found.

I am using Windows server 2008 R2 with the normal Windows Firewall, not TMG.

Everything else in the article pertains to this issue, restarting RRAS resolves the issue until a VPN is established.
0
 
LVL 11

Accepted Solution

by:
John Easton earned 500 total points
ID: 39745134
Ok, that article on applies to ISA / TMG.  If it is not that, then it is likely to be a DNS issue.

To check this look in your DNS Server.  You should only have 1 local IP address for your server.  Now connect a VPN, and if you now see two local IP addresses then DNS is definitely the issue.

If so, you might have the issue described here:  http://social.technet.microsoft.com/Forums/windowsserver/en-US/d3091f4c-a4c3-4d32-b704-47e8b0432287/server-2008-rras-internal-adaptor-causing-duplicate-dns-entry-for-host?forum=winserverNIS

I don't like recommending editing the registry and this forum lists a couple of possible solutions which require it.  However, if your symptoms match those described this may be your only choice.
0
 
LVL 77

Expert Comment

by:Rob Williams
ID: 39750537
The common issue is in the DNS management console.  Right click on the server name and choose properties.  Under the Interfaces tab uncheck the VPN adapter IP.  If you are using the windows VPN it has to assign the server an IP, but it should not be tagged in the DNS console.

You may need to flush DNS on the server and workstations if still having problems, either by rebooting or running   ipconfig /flushdns
0
 

Author Comment

by:Cyber_Junkie
ID: 39752304
Currently testing
0

Featured Post

Has Powershell sent you back into the Stone Age?

If managing Active Directory using Windows Powershell® is making you feel like you stepped back in time, you are not alone.  For nearly 20 years, AD admins around the world have used one tool for day-to-day AD management: Hyena. Discover why.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

How to set-up an On Demand, IPSec, Site to SIte, VPN from a Draytek Vigor Router to a Cyberoam UTM Appliance. A concise guide to the settings required on both devices
Resolving an irritating Remote Desktop connection that stops your saved credentials from being used.
To efficiently enable the rotation of USB drives for backups, storage pools need to be created. This way no matter which USB drive is installed, the backups will successfully write without any administrative intervention. Multiple USB devices need t…
Windows 10 is mostly good. However the one thing that annoys me is how many clicks you have to do to dial a VPN connection. You have to go to settings from the start menu, (2 clicks), Network and Internet (1 click), Click VPN (another click) then fi…
Suggested Courses

623 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