43 lines
1.9 KiB
HTML
43 lines
1.9 KiB
HTML
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Final//EN">
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<HTML>
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<HEAD>
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<META NAME="GENERATOR" CONTENT="SGML-Tools 1.0.9">
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<TITLE>Wireless Howto: FAQ - Frequently asked questions </TITLE>
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<LINK HREF="Wireless-HOWTO-10.html" REL=next>
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<LINK HREF="Wireless-HOWTO-8.html" REL=previous>
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<LINK HREF="Wireless-HOWTO.html#toc9" REL=contents>
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<BODY>
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<A HREF="Wireless-HOWTO-10.html">Next</A>
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<A HREF="Wireless-HOWTO.html#toc9">Contents</A>
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<HR>
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<H2><A NAME="s9">9. FAQ - Frequently asked questions </A></H2>
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<P>Q1: What's the difference between BSSID and ESSID and when I need a ESSID?
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<P>
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<P>A1: BSSID is 48 bit number used to identify the BSS short area, where all
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hosts talk each other (eventually with an Access Point) ESSID is a variable
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length string that can let communicate different BSS are to extend it to a
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Extended Service Set (ESS). There is one Access Point for each BSS and all
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they talk together only if you belong to the same ESSID. Really you need ESSID
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if you have a large network with at least 2 Access Points.
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<P>Q2: What Access Point I have to buy?
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<P>A2: The less expansive you find: what is important is that the Access Point
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and the cards you are using use the same Physical Layer Specific: all FHSS
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compatible or all DSSS compatible. Attention to Proxim RangeLan2 cards that
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cannot talk with other standard FHSS because they use the proprietary protocol
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OpenAir.
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<P>Q3: What do I use the channel setting for?
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<P>A3: When you have more network with different BSS (and with different vendors)
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you could have interference problem: changing channel on Access Points or in
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Adhoc mode hosts could help you avoiding this kind of problems.
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<P>Q4: Why I cannot set channel on Infrastructure hosts?
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<P>A4: Because the channel is decided by the Access Point.
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<A HREF="Wireless-HOWTO.html#toc9">Contents</A>
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