Mailing List os2-wireless_users@2rosenthals.com Archived Message #4398 previous message next message back to list

From: Lewis G Rosenthal <os2-wireless_users@2rosenthals.com> Full Headers
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Sender: os2-wireless_users-owner <os2-wireless_users-owner@2rosenthals.com>
Subject: [OS2Wireless] Four APs on one chan- how can this be?
Date: Mon, 11 Aug 2003 17:58:29 EST5EDT4,M4.1,M10.5
To: os2-wireless_users@2rosenthals.com

That's certainly not supposed to work. However, that said, bear in mind that the 802.11 spec is light on standards for roaming, and it is possible - I suppose - for a given manufacturer to implement such a layout as you describe using some slight of hand at the AP itself.

You are right in saying that it shouldn't work. In theory, they should be stepping on one another. What is probably going on is some type of wireless bridging (such as Linksys' Point to Multipoint scenario). Tell me, were the IP's all on the same subnet?

Randy Fowler wrote:

Here's something that's been bugging me ever since I saw it. I've been meaning to ask someone how it could be!?

While on vacation for the 4th of July in Atlanta, GA, I saw a banner touting "free wireless internet access" at a hotel located in the Buckhead area.  Before heading home, I stopped by with my notebook and asked them if I could test it. When I fired up my LinkSys 802.11b site survey utility, I was surprised to see four access points all on channel 10! I didn't move about any as I was just sitting in their lobby for a few minutes, but all four of them had mac addresses and each had very good signal strength.

How could this be?  I mean wouldn't four APs all on the same channel this close together really screw things up?  This goes against everything I've read about using the 3 available non-overlapping 802.11b channels.

Randy



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Lewis
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Lewis G Rosenthal, CNA
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