?
Solved

VPN: Have VPN assign addresses to remot econnections and dhcp server assign addresses to local connections

Posted on 2008-09-29
3
Medium Priority
?
253 Views
Last Modified: 2010-04-12
Hello

I have a simple linksys rvl200 VPN router that connects 3 offices together.
In my central office my VPN router is assigning IP addresses to each local computer (because it has DHCP enabled). The central office has a DHCP server running win2k3. I want all local computers to get their address from the DHCP server, not the VPN. How can this be done? Do I need new hardware?
0
Comment
Question by:adimit
[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
3 Comments
 
LVL 10

Expert Comment

by:kukno
ID: 22597546
Hi,

to relay DHCP requests through a router you need a DHCP relay agent on the router (or somewhere in the network). Reason: DHCP Requests are Layer2 broadcast messages which cannot be routed. I checked the manual of your router and it does NOT offer a DHCP relay agent. So, you cannot get IP addresses from the central DHCP server. If however your router did have a DHCP relay agent it would work. However, you need special configuations on the DHCP server, as you obviously cannot have the same subnet in all three offices.

http://en.wikipedia.org/wiki/Dhcp

Regards
Kurt
0
 

Author Comment

by:adimit
ID: 22598045
the VPN connection between all 3 offices works fine. All I am looking for is to have each DHCP server in each local office server up DHCP addresses to its local users. Will a relay agent do this? If so, what is the benefit of having a DHCP server, separate from the router?
0
 
LVL 10

Accepted Solution

by:
kukno earned 2000 total points
ID: 22598230
I'm confused. In your first post you say, that you want the central DHCP server to serve ip addresses. At least that's how I understand it. Now, you say you want a DHCP server in each location. O.K. to sum it up:

1.) If you want ONE central DHCP server, you will need a DHCP relay agent on the VPN routers, which is not available with the linksys rvl200.

2.) If you want local DHCP servers in each office, you don't need a DHCP relay agent. In this case there is no real benefit of having a separate DHCP server. So, you can use the one on the router. However, it all depends on the size of the locations and if you have any special requirements. If it's a few clients, and you just need an ip addres, DNS, etc. the DHCP on the router is absolutely sufficient.

Regards
Kurt
0

Featured Post

Portable, direct connect server access

The ATEN CV211 connects a laptop directly to any server allowing you instant access to perform data maintenance and local operations, for quick troubleshooting, updating, service and repair.

Question has a verified solution.

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

Preface Having the need * to contact many different companies with different infrastructures * do remote maintenance in their network required us to implement a more flexible routing solution. As RAS, PPTP, L2TP and VPN Client connections are no…
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. …
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…
Suggested Courses
Course of the Month15 days, 16 hours left to enroll

743 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