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VPN with Linksys RVS4000

Posted on 2009-04-08
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Last Modified: 2012-05-06
This is my dilemma.
(and yes, all software and firmware is up to date)

I want employees to be able to connect to their computers and resources at work with VPN, preferably windows VPN and not linksys software.

At the office we have,
internet---> comcast cable modem---> linksys rvs4000 router----> linksys 24 port swtich----> server running 2003 and about 7 computers (mixed XP Pro and Vista business)

1.  Can windows VPN work with this router or do I have to use the linksys VPN software?
2.  What ports do I need forwarded?  I figured if I want to use windows VPN, I don't need to set up client accounts under VPN on the router (because that would be for the linksys software, correct?)
3.  I tried the linksys VPN setup wizard to see if it could help me connect and it want's a password for 2 routers.  Shouldn't I only need one because I'm connecting to my work network and not bridging 2 networks.  (for example, if I'm at a local coffee shop and want to connect to company resources)  That is how I always did it with windows VPN.
4.  Do I have to change anything on my Comcast modem (
5.  Is there an easier solution, like...just ditching this router for another?

The router I used to use when VPN with windows worked, was Netgear FVG318.
I switched to the linksys router because
A) every other product I had was linksys
and B) this one stopped working completely, haha


Thanks in advance!!!
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Question by:rebbie23
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Rob Williams earned 250 total points
ID: 24099602
1) No, you need to use QuickVPN client with RVS4000. You can use Windows client with RV042 but limited to 5 simultaneous connections
2) Port 1723 and enable GRE (PPTP pass-through), see below
3) Password for 2 routers? QuickVPN is very fussy and will not work in many situations. It also requires a certificate be generated by the router and imported to the client machine.
4) If comcast modem is a combined modem and router it needs to be put in bridged mode
5) Not really easier than the Windows PPTP VPN, but more secure and stable would be a commercial grade router like a Cisco ASA 55xx

Netgear FVS series are fine but you have to buy the client for each simultaneous user.

Windows Server 2003/client set up:
The basic server and client configurations can be found at the following sites with good detail:
-Server 2003 configuration:
http://www.lan-2-wan.com/vpns-RRAS-1nic.htm
-Windows XP client configuration:
http://www.lan-2-wan.com/vpns-XP-Client.htm
-You will also have to configure the router to forward the VPN traffic to the server. This is done by enabling on your router VPN or PPTP pass-through, and also forwarding port 1723 traffic to the server's IP. For details as to how to configure the port forwarding, click on the link for your router (assuming it is present) on the following page:
http://www.portforward.com/english/applications/port_forwarding/PPTP/PPTPindex.htm
-The users that are connecting to the VPN need to have allow access enabled under the dial-in tab of their profile in active directory
-The only other thing to remember is the subnet you use at the remote office needs to be different than the server end. For example if you are using 192.168.1.x at the office, the remote should be something like 192.168.2.x

-Once this is configured you can then use services similar to how you would on the local network. You will not be able to browse the network unless you have a WINS server installed. Also depending on your network configuration you may have problems connecting to devices by name, though this can usually be configured.. Using the IP address is less problematic such as \\192.168.1.111\SharenName.
-Nome resolution can be dealt with in many ways. See:
http://msmvps.com/blogs/robwill/archive/2008/05/10/vpn-client-name-resolution.aspx
However, the best method is to add the DNS suffix to the remote users VPN client configuration as described in the link above.
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by:rebbie23
ID: 24099746
Thanks,

I know my server and modem should be all set because VPN worked before.  II will return this router for the one you mentioned, there will probably only be 2 connections at any given time anyways.
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Expert Comment

by:Rob Williams
ID: 24099782
My preference is the RV042. It and the RV081 have proved to be very stable low end commercial routers, and they offer far more options than others. However, if you wish to use the Windows VPN the RVS4000 should work fine for pass through.

Thanks rebbie23,
Cheers!
--Rob.

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Author Comment

by:rebbie23
ID: 24131857
Everything is running great now!

Spent some time on the phone with Cisco and got them to admit that they can't get Windows VPN to work  with the RVS4000.  They said it should work fine but they couldn't figure out why not, so I went ahead with the switch.

Swapped it out for the RV042, forwarded my ports and VPN was up and running perfectly.

Thanks for all the help!
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Expert Comment

by:Rob Williams
ID: 24134485
Very welcome. Thanks for posting the information from Cisco. That is good to know.
I have had lost of different problems with the 4000 series. I find the RV042 and RV081 very stable and dependable.
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