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How do I setup a wireless router behind a sonicwall firewall for full WIFI WAN access?

Posted on 2008-10-09
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1,527 Views
Last Modified: 2012-05-05
I am trying to settup a wireless router Linksys WRT310N behind a SonicWall TZ 170. I would like to have the  Linksys WRT310N to give the guest users access to the internet without any access to the interanl network. How would go by doing that?
Thanks

Rob
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Question by:rqdasilva
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Expert Comment

by:Andres Perales
ID: 22680314
I would put that wireless access point in the DMZ and the allow access that way!
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Expert Comment

by:tenaj-207
ID: 22680340
peralesa is right the DMZ would be the proper place for your guest wireless.  But to answer your question...

You would plug the LAN connection on your network to the WAN connection on your Linksys router.  Then connect your PC up to one of the LAN ports on the Linksys and configure the device for guest access using a subnet that is different then the one you use on your company LAN.  For example if your company uses;

Network 192.168.0.X
Subnet mask 255.255.255.0
Gateway 192.168.0.1

Then setup the Linksys with
WAN IP- DHCP
DNS- specify your ISP's DNS not your internal DNS server
LAN IP 10.10.10.1
Subnet mask- 255.255.255.0
Turn DHCP on

This way people who connect wirelessly to the guest network will get a 10.10.10.X IP address and should will not be able to access your internal network.
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Author Comment

by:rqdasilva
ID: 22682616
So I would Plug the linksys to the OPT conection on the TZ 170 and What steps should I take on the Sonic wall?
Thanks
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Expert Comment

by:tenaj-207
ID: 22713282
rqdasilva:

Sorry I haven't gotten back to you I thought peralesa would walk you through this since it was his idea but....

First, on the sonicwall TZ170 loginto the box and configure the OPT on a different subnet.  For example if your office uses 192.168.0.X then use something like 10.10.10.X.  If you need more information on how to setup the IP's let me know.

Second, plug the linksys WAN port into the TZ170 OPT port (make sure you don't plug this port into the network as that could cause issues).  On the linksys set the gateway to the 10.10.10.X gateway,  set the DNS to whatever your DNS is for your ISP and turn on DHCP.  

Third, connect your laptop to a LAN port on the linksys and make sure you can get out to the internet.  Once you have confirmed that the linksys is configured correctly setup your wireless.

A quick example of the network settings would be

TZ170
WAN 72.189.15.154
LAN 192.168.0.1/24
OPT 10.10.10.1/24
DNS1 72.144.1.52
DNS2 72.144.3.54

Linksys
WAN 10.10.10.2/24
LAN 10.10.11.1/24
DHCP on
DNS1 72.144.1.52
DNS2 72.144.3.54

The /24 at the end of the IP addresses means that the subnet mask is 255.255.255.0.

Let me know if that does it for you.

-t

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Expert Comment

by:tenaj-207
ID: 22713308
By the way all those numbers are just examples and do not reflect what you are actually using.  Do not change your WAN IP address or your LAN IP address :).
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Expert Comment

by:tenaj-207
ID: 22814783
rqdasilva,

Did that help or do you need more details?
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Accepted Solution

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rqdasilva earned 0 total points
ID: 23642775
I called Tech suipport and they walked me thru the process.
The issue has been resolved.
Thanks
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