Solved

RDP over SonicWall site-to-site VPN

Posted on 2014-02-28
5
1,507 Views
Last Modified: 2014-03-04
I have a site-to-site VPN setup for a client using a SonicWall TZ 205 wireless-N in the main building and a TZ 100 wireless-N in the remote building. The main building is using a 192.168.100.x subnet and the remote building is using a 192.168.1.x subnet. The VPN works fine. It shows connected on both ends. While in the remote building I can ping all IP’s on the main buildings subnet and access all the shares on the network. I can RDP into the domain controller in the main building with no issues. When I try and RDP into a workstation using its IP address I cannot connect. I can ping it though. I made sure I could RDP into it from the same subnet and I can RDP into it from my office over the SonicWall VPN client. I am a little lost on why I can’t RDP into this workstations over the site-to-site VPN. Any suggestions would be great. Thank you.
0
Comment
Question by:RhemaTek
5 Comments
 
LVL 38

Accepted Solution

by:
Aaron Tomosky earned 450 total points
Comment Utility
Does the firewall on the workstation allow all connections? Check advanced firewall to see if its limited to the subnet.
0
 
LVL 37

Assisted Solution

by:Bing CISM / CISSP
Bing CISM / CISSP earned 50 total points
Comment Utility
in addtion to aarontomosky's comment, please see below the link for more information how to check the Windows firewall settings. please be aware the method actually applies to all Windows versions above XP though the instructions and screenshots are for XP in the article.

http://technet.microsoft.com/en-us/library/cc875822.aspx

moreover, as you mentioned that all worksations on local subnet and via VPN clients can access the problem computer, please double check if all VPN clients are actually on the local subnet as they obtain IPs from the same DHCP sevrver on the subnet.
0
 
LVL 20

Expert Comment

by:masnrock
Comment Utility
Sounds like you need to check the firewall rules in the Sonicwalls themselves. Named, look at the firewall polices and allow the flow of RDP traffic between the two LANs across the VPN. It has nothing to do with Windows Firewall
0
 
LVL 15

Expert Comment

by:ZabagaR
Comment Utility
Instead of RDP to the workstation, do this test:  telnet to the workstation.
From a command prompt type:  telnet your.ip.address.here 3389

If you get a response, the screen will refresh and you'll end up with a blinking cursor.

Do you get that, or does it flat out not connect?

This test will show if there's a firewall issue or not.
0
 

Author Closing Comment

by:RhemaTek
Comment Utility
Thank you for all the suggestions. It turned out to be the firewall on the workstation being used to remote into. I had to go into the advanced settings in the firewall and check the Remote Desktop and Telnet Server boxes. I also went into the ICMP tab and checked the Allow incoming echo request, Allow incoming timestamp request, mask request and router request. It works fine now. Thanks again.
0

Featured Post

What Is Threat Intelligence?

Threat intelligence is often discussed, but rarely understood. Starting with a precise definition, along with clear business goals, is essential.

Join & Write a Comment

Suggested Solutions

Let’s list some of the technologies that enable smooth teleworking. 
When it comes to security, there are always trade-offs between security and convenience/ease of administration. This article examines some of the main pros and cons of using key authentication vs password authentication for hosting an SFTP server.
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…
In this tutorial you'll learn about bandwidth monitoring with flows and packet sniffing with our network monitoring solution PRTG Network Monitor (https://www.paessler.com/prtg). If you're interested in additional methods for monitoring bandwidt…

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