Mutiple Wireless Networks

Baz

Baz

Baz

Soldato
Joined
9 Dec 2002
Posts
4,375
Location
Peterborough
Simple question really, our company rents space from another company, and we wish to have wireless, the only problem is that the other company already has wireless installed. The area we want wireless installed has three AP's in already.

So, is it possible to install ours at different channels and not have them interfere?
 
Under ETSI regulations, there are only 3 non-overlapping channels for 802.11b/g so you could run in to problems.

In such a case, you could look at a "managed" wireless solution which allows you to broadcast multiple wireless SSIDs for a single AP. Each SSID then gets it's own WPA/WPA2 security settings and traffic coming out the back uses VLANs to direct the traffic back to the right network.

I've done this with NetGear, Siemens and SonicWall kit and it works well once setup.
 
802.11b/g/n

I can't remember the name of the tools, but there are some apps you can run that'll tell you what channels the local AP's are broadcasting on. The channels that dont overlap in the b/g range are 1,6 and 11 so you need to know what the AP's there are currently broadcasting on to see whats free for your AP's.

To be honest it should be fine, we have 4/5 AP's running in our London office and there are a dozen or so other wireless network around and we dont get any problems with interference.
 
Drayteks allow multiple SSID's on the same AP, and are substantially cheaper than higher end kit such as Cisco 877W's etc.
 
Beware of the firmware bug though with the 2820's - the firmware on the new ones released (cant be specific with time) actually bricks the wireless and you need to flash the firmware with a new beta version before it works. Not great from Draytek.
 
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