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Creating a site to site VPN from a remote office to HQ

Posted on 2008-06-18
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Last Modified: 2010-04-12
I have an SBS 2003 box behind a Sonicwall TZ 170. The client has a branch office that has users logging in locally then connecting over VPN (Windows client) back to HQ and its not very efficient. I have another TZ170, and can't figure out how to get the tunnel up and running.  The only documentation i can find is for SonicOS 2.0 and I have 3.1.xx. I would like the end result to be:
a. the remote office users log onto the domain at startup
b. Outlook to talk to Exchange, (currently they are using OWA)
c. Shared fodlers available
(all obvious I know)

The other hitch is that all the workstations in the remote office are wireless, so i have to throw a linksys WAP in the mix too and get DHCP (SBS server back at HQ)handing out IPs for the remote office. Thanks.
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Question by:abatemc
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Michael W earned 500 total points
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I am not that familiar with SonicWall products, but I will give a quick shot...

Goto the SonicWall website and access their Knowledge Base for finding out how to setup a site-to-site VPN tunnel between the two TZ 170's.

SonicWall Knowledge Base, geared to TZ 170 Appliances:
http://www.sonicwall.com/us/support/3134.html

SonicWall SonicOS Standard 3.x Administrator's Guide:
http://www.sonicwall.com/downloads/SonicWALL_SonicOS_Standard_3.1_Administrators_Guide.pdf

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I don't know if the TZ 170's support it, but if you can setup DHCP relay across the VPN tunnel, you can have DHCP addresses assigned to all workstations on the remote office side. Now when SBS is thrown into the mix, another issue appears as SBS does not always accept connections from other subnets, so you might have to do some digging if you go that route.

DHCP Over site-to-site VPN (EE Solution):
http://www.experts-exchange.com/Networking/Security/IPSec/Q_23403502.html

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