Date: Thu, 25 Sep 2008 18:13:38 +0200 From: John Hay <jhay@meraka.org.za> To: "Paul B. Mahol" <onemda@gmail.com> Cc: freebsd-mobile@freebsd.org Subject: Re: setting bssid in adhoc mode Message-ID: <20080925161338.GA69284@zibbi.meraka.csir.co.za> In-Reply-To: <3a142e750809250741j7b9003e4q539618d1c9407def@mail.gmail.com> References: <20080922132500.GA25677@zibbi.meraka.csir.co.za> <3a142e750809250741j7b9003e4q539618d1c9407def@mail.gmail.com>
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On Thu, Sep 25, 2008 at 04:41:30PM +0200, Paul B. Mahol wrote: > On 9/22/08, John Hay <jhay@meraka.org.za> wrote: > > Hi > > > > I'm trying out the new ath/wlan stuff in current. Should one still be > > able to set the bssid in adhoc mode? We normally lock the bssid in > > an adhoc network because of problems that the network split and does > > not merge, if you do not do it. > > > > What I have done is this: > > > > # ifconfig wlan0 create wlandev ath0 wlanmode adhoc > > # ifconfig wlan0 ssid ptamesh up > > > > Up to here works well. It will scan and if it finds another node with the > > same ssid, it will "lock" on that channel and use the correct bssid. > > > > If it does not find another node with the same ssid, it will start it > > own thing on channel 10. But it looks like one cannot set the bssid. > > > > # ifconfig wlan0 bssid 02:07:ca:fe:ba:be > > ifconfig: 02:07:ca:fe:ba:be: bad value > > I had similar experience with STA mode, instead I use ap (ap is alias > for bssid, at least it works in STA mode) > I never bothered is this bug in manual page, ifconfig or in something else ... Ah, thanks yes, "ifconfig wlan0 ap 02:07:ca:fe:ba:be" works just fine. Just do not try to unset it with "ifconfig wlan0 ap -". That is an alias for "panic now" :-) So it looks like ifconfig is getting confused with the many different uses of the keyword bssid. I must say I still do not understand what the other use for bssid is. Close to the end of ifconfig/ifieee80211.c there are these: DEF_CMD_ARG("bssid", set80211bssid), DEF_CMD_ARG("ap", set80211bssid), ... DEF_CLONE_CMD("bssid", 1, set80211clone_bssid), DEF_CLONE_CMD("-bssid", 0, set80211clone_bssid), So my guess is that I was hitting the clone version when in fact I needed the other version. Luckily ap does not have a clone version. So when should the clone version be used? And how does ifconfig decide which one to use? John -- John Hay -- John.Hay@meraka.csir.co.za / jhay@FreeBSD.org
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