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Creating a wireless network on a different subnet

Posted on 2011-04-19
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Hello, I have a linksys rv042 (4 port router). It is a dual-wan router. And we are on a 192.168.1.x network with 255.255.255.0 subnet. port#1 is from t1, port#2 is from fiberoptic/ethernet, port#3 goes into cisco 48-port switch. Is it possible to connect a linksys e3000 router to port#4 and have a separate wireless network utilizing the existing bandwidth?

My goal is to create a wireless network for office visitors but I do not want them to be able to access or scan the LAN (too many public shares and other things I do not want guests to see). What is the best way to create a seperated wireless network?

rv042 router
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Question by:XAnalyzer
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by:QuietFrank
ID: 35428342
You can set up the E3000 to host a Guest WLAN. The doc is here.
http://www6.nohold.net/Cisco2/ukp.aspx?pid=80&app=vw&vw=1&login=1&docid=c3e42afc03994df5bb6bc531b42e9201_21461.xml


This is the doc for the RV042. All page number references below are to this doc.
http://www.cisco.com/en/US/docs/routers/csbr/rv0xx/administration/guide/rv0xx_AG_78-19576.pdf

Go into the RV042 and create a new VLAN(pg 27). Go to Port Management->Port Setup and change the VLAN to the newly created VLAN(pg 87).

Create an Access List, Firewall->Access Rules(pg 95-101). It should go something like this:

Action     Service     Source Int   Source    Destination
Deny       All traffic       WAN4       ANY         192.168.1.0/24
Permit      All Traffic      WAN4       ANY         Any

This will block traffic to your LAN, and enable traffic to everywhere else.
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QuietFrank earned 500 total points
ID: 35428416
Additionally, you'll likely need to check the box for multiple subnet on the Setup->Network page to allow the creation of the second VLAN.

Also, setup the DHCP server for that VLAN. This is just for the Linksys router. The wireless clients can get their DHCP from the Linksys.

GL

Frank
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