Date: Tue, 04 Mar 2003 07:18:02 -0700 (MST) From: "M. Warner Losh" <imp@bsdimp.com> To: kcai@cs.ubc.ca, questions@FreeBSD.ORG Subject: Re: ad-hoc wireless mode and ticks (fwd) Message-ID: <20030304.071802.05621603.imp@bsdimp.com> In-Reply-To: <20030304012848.GA25691@wantadilla.lemis.com> References: <Pine.GSO.4.53.0303031309110.21197@granville.cs.ubc.ca> <20030304012848.GA25691@wantadilla.lemis.com>
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In message: <20030304012848.GA25691@wantadilla.lemis.com>
"Greg 'groggy' Lehey" <grog@FreeBSD.ORG> writes:
: > Feel a little confused with the ad-hoc mode set by "wicontrol -p
: > 3", is it Lucent ad-hoc mode instead of the standard IEEE ad-hoc
: > mode (IBSS).
:
: Correct. It's generally called "demo ad-hoc mode".
-p is card dependent number. It depends on what card you have, what
firmware, etc. Don't use it. It is bad juju. Instead, use the
ifconfig interface.
: > But if I set it to "-p 4", it can do the job. However, I cannot find
: > this option in wicontrol man page or anywhere. Could somebody
: > explain me what's going on here?
:
: I don't know a -p 4. I set ad-hoc (i.e. IBSS) mode with -p 1 (in
: other words, exactly the same way as managed/BSS mode). You'll need
: at least one IBSS, of course. Set that with -c 1. Ignore the claim
: in the man page that it doesn't work. I run my wireless network like
: this, and it interoperates fine with Linux and even Microsoft. See
: http://www.lemis.com/grog/diary-feb2002.html#9 for more details.
Don't do that. You are asking for trouble. IT DOES NOT WORK. Trust
me. There are a lot of situations where it can be made to work, but
as general advise, it sucks. That's why the man pages say what they
say. Greg leads a charmed life. That's why the man pages say what
they say.
: Yes, this is very confusing. I've been asking the maintainer to
: change the terminology, but he points out that the other BSDs do it
: this way as well.
I think you need to learn to ask better. The maintainer uses industry
standard terminology.
don't use wicontrol -p for anything. If it breaks, it breaks in
mysterious ways and you get a lot of 'works for me.' posts.
In -stable, you want something like
ifconfig wi0 media DS/11Mbps mediaopt ibss-craete # ibss mode (adhoc)
ifconfig wi0 media DS/11Mbps mediaopt adhoc # lucent
is what you want to use.
In current, by contrast, you want to use the following:
ifconfig wi0 media DS/11Mbps mediaopt adhoc # ibss mode (adhoc)
ifconfig wi0 media DS/11Mbps mediaopt adhoc,flag0 # lucent
You do not want to use wicontrol to configure the card at all.
Wanrer
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