From owner-freebsd-net@FreeBSD.ORG  Wed Dec 12 05:54:02 2007
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Date: Wed, 12 Dec 2007 16:53:53 +1100 (EST)
From: Ian Smith <smithi@nimnet.asn.au>
To: Randy Bush <randy@psg.com>
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Cc: freebsd-net@freebsd.org
Subject: Re: ifconfig: BRDGADD vr1: Invalid argument
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On Wed, 12 Dec 2007, Randy Bush wrote:
 > > Ah.  Well the only other thing i noticed (after posting) was that each
 > > of vr1 to vr3 showed as UP, but:
 > >>         media: Ethernet autoselect (none)
 > >>         status: no carrier
 > > but I don't know whether that should matter?
 > 
 > man page says not.  and if i put ath0 first, which has
 > carrier/association, i get the barfola on ath0
 > 
 > # ifconfig ath0
 > ath0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
 >         ether 00:0b:6b:83:59:25
 >         media: IEEE 802.11 Wireless Ethernet autoselect <hostap>
 > (autoselect <hostap>)
 >         status: associated
 >         ssid rgnet-aden channel 4 (2427 Mhz 11g) bssid 00:0b:6b:83:59:25
 >         authmode OPEN privacy ON deftxkey UNDEF wepkey 1:104-bit txpowmax 38
 >         bmiss 7 scanvalid 60 bgscan bgscanintvl 300 bgscanidle 250
 >         roam:rssi11g 14 roam:rate11g 5 protmode CTS burst dtimperiod 1
 >         bintval 100
 > # ifconfig bridge0 addm ath0 addm vr1 up
 > ifconfig: BRDGADD ath0: Invalid argument

That's my cheap guesswork done then, sorry; awaiting Those Who Know ..

cheers, Ian