Date: Tue, 19 Jul 2005 09:55:03 +0100 (BST) From: Robert Watson <rwatson@FreeBSD.org> To: current@FreeBSD.org Subject: Recent fragility with if_wi, 802.11 adhoc/wep, and Tiger Message-ID: <20050719094905.F15510@fledge.watson.org>
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I fairly regularly use 802.11 adhoc with WEP to communicate between my 6.x/7.x FreeBSD notebook using if_wi, and my Apple PowerBook running Mac OS X Tiger. A few days ago, when I updated from a June to a July HEAD revision, this became quite "fragile". Specifically, I often find that the Mac can't send to the FreeBSD box (ARP fails, etc), and that sometimes it will give an error when I ask it to re-connect to the ad hoc network. I find that if I ifconfig down/up if_wi, and likewise turn off and on the wireless on the PowerBook, it seems to recover. I've not had a chance to really try and diagnose this at all -- i.e., does tcpdump show packets on either end, 802.11 state machine, etc. I was wondering if anyone else has seen this problem, though. Robert N M Watson
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