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Set up 2 networks behind SonicWall TZ-100

Posted on 2011-02-28
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Last Modified: 2013-11-16
I'd like to set up 2 networks, a 192.168.1.x and 192.168.2.x using only 1 TZ-100 SonicWall router.  One side will have to be assigned DHCP from the router.  The other will be DHCP assigned from my server.  Is it possible to do this?  The 2 sides should NOT talk directly.  How do I go about setting it up.  It's a brand new Sonicwall.

Thanks!
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Question by:dbestcomputers
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digitap earned 500 total points
ID: 35002555
Whatever you want your primary network to be on, i'd use the LAN interface for that. then, create a new zone for the secondary subnet (192.168.1.0/24 or 192.168.2.0/24). assign that zone to one of the available physical interfaces. whichever subnet you've assigned with the dhcp server, simply disable the dhcp scope for it to avoid conflicts.

you'll want to make sure that your network switching doesn't cross or connect the two interfaces. if you vlan keep those separate as well.

make sure your newzone <> LAN firewall rules are denied.

the spare interfaces may have portshields assigned to them so you'll need to modify those. i've included a PDF about portshields.
configuring-portshield-interface.pdf
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by:digitap
ID: 35002557
oops, to clarify: whichever interface the DHCP server is on, you'll want to disable the dhcp scope on the sonicwall to avoid conficts. on the sonicwall, this is found under network > dhcp server.
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Author Closing Comment

by:dbestcomputers
ID: 35029275
Thanks! Got it all working great.  Not near as difficult as I thought.
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Expert Comment

by:digitap
ID: 35029291
good. glad to hear and thanks for the points!
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