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Different DHCP for WiFi and LAN

Posted on 2013-06-26
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Last Modified: 2013-07-04
Ladies and gents.

I am wondering if it is possible to setup a separate DHCP network for my WiFi and my LAN.

One example,

I have a small business they have internal network traffic on the LAN all is well.
However they want to offer WiFi their clients that is essentially on a separate network.
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Question by:Alwayslearningmore
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7 Comments
 
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John Hurst earned 800 total points
ID: 39280176
To do it with strong security, you should use VLAN's.

To do it simply, hook the wireless router into your LAN (LAN port on the router to a port on your LAN). Give it a static IP on the LAN.  Now leave DHCP ON for the wireless router and give it a different subnet than your LAN.

This should work in most cases, but it is not terrifically secure.

.... Thinkpads_User
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Author Comment

by:Alwayslearningmore
ID: 39280178
ok cool.

Thank you!
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LVL 49

Assisted Solution

by:Jackie Man
Jackie Man earned 400 total points
ID: 39280198
Agreed.

If you have not yet purchased the wireless router, get one with built-in guest network and the guest has to sign on on a web portal and will be given a IP address with different sub-net from your internal LAN.

Most mid-range wireless router has such feature and we are using a Linksys E2500 which has such feature.

http://kb.linksys.com/Linksys/ukp.aspx?vw=1&docid=ae5ed41c804f4cb2ba6f40617e4377da_Setting_up_Guest_Access_on_the_Web_based_Setup_Page_of_the_E.xml&pid=96&slnid=3

Reference:
http://www.wi-fiplanet.com/tutorials/article.php/3931491/ShareYourWirelessNetworkWithGuests.htm
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LVL 47

Assisted Solution

by:Craig Beck
Craig Beck earned 200 total points
ID: 39280604
Easiest way - do it with 3 routers...

You have one router connected to the ISP.

Connect one dedicated wired router for the LAN (http://uk.asus.com/Networks/Wired_Routers_Switches/RX3081/ for example) to the ISP router.  All LAN clients connect to the LAN side of this router.

Connect another dedicated wireless router (http://uk.asus.com/Networks/Wireless_Routers/RTN56U for example) to the ISP router.  All Wireless clients connect to the wireless.

This keeps everything separate and no security issues.

Job done!
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LVL 1

Assisted Solution

by:icuadmin
icuadmin earned 220 total points
ID: 39280620
I'd have a look at the Draytek Vigor series, especially the 2830 series:

http://www.draytek.co.uk/products/vigor2830.html
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Author Comment

by:Alwayslearningmore
ID: 39299035
Thanks great ideas!
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LVL 98

Expert Comment

by:John Hurst
ID: 39299556
@Alwayslearningmore - Thanks, and I was happy to help.

.... Thinkpads_User
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