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Date:      Wed, 12 Dec 2007 19:29:45 +0100
From:      Max Laier <max@love2party.net>
To:        freebsd-net@freebsd.org
Cc:        Randy Bush <randy@psg.com>
Subject:   Re: ifconfig: BRDGADD vr1: Invalid argument
Message-ID:  <200712121929.54716.max@love2party.net>
In-Reply-To: <18271.23388.863680.888792@roam.psg.com>
References:  <18271.23388.863680.888792@roam.psg.com>

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On Wednesday 12 December 2007, Randy Bush wrote:
> the symptom
>
> # ifconfig bridge0 192.168.0.1 addm vr1 addm vr2 addm vr3 addm ath0 up
> ifconfig: BRDGADD vr1: Invalid argument

EINVAL can be returned from BRDGADD for three reasons:
 1) The MTU on the member interfaces don't match (the first member defines=
=20
the MTU of the bridge).  It doesn't look like this is what you are=20
seeing.
 2) As a result of ifpromisc() (via if_setflag() via ioctl(SIOCSIFFLAGS)). =
=20
This is your likely candidate.  Can you try to manually put the interface=20
into promiscues mode (i.e. "ifconfig vr0 promisc") ... if that fails you=20
will have to figure out why (I don't really see why it would return=20
EINVAL).
 3) Most likely candidate:  Your userland and kernel are out of sync.  Try=
=20
to rebuild ifconfig with the same headers installed as your kernel was=20
built.

>
> the conditions
>
> # kldstat
> Id Refs Address    Size     Name
>  1    3 0xc0400000 39ad48   kernel
>  2    1 0xc27c8000 8000     if_bridge.ko
>  3    1 0xc27d0000 5000     bridgestp.ko
>
> # sysctl -a | grep bridge | sort
> dev.hostb.0.%desc: Host to PCI bridge
> dev.isab.0.%desc: PCI-ISA bridge
> dev.pcib.0.%desc: Host to PCI bridge
> net.link.bridge.ipfw: 1       -- i set this, same either way
> net.link.bridge.ipfw_arp: 1   -- i set this, same either way
> net.link.bridge.log_stp: 1    -- i set this, same either way
> net.link.bridge.pfil_bridge: 0
> net.link.bridge.pfil_local_phys: 0
> net.link.bridge.pfil_member: 0
> net.link.bridge.pfil_onlyip: 0
>
> cloned_interfaces=3Dbridge0
> ifconfig_bridge0=3D"192.168.0.1 addm vr1 addm vr2 addm vr3 addm ath0 up"
> ifconfig_vr1=3Dup
> ifconfig_vr2=3Dup
> ifconfig_vr3=3Dup
> ifconfig_ath0=3D"channel 4 ssid rgnet-aden wep wepkey nokidding mediaopt
> hostap up" gateway_enable=3DYES
>
> # ifconfig -a
> vr0: flags=3D8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu
> 1500 options=3Db<RXCSUM,TXCSUM,VLAN_MTU>
>         ether 00:00:24:c8:b3:28
>         inet 666.42.86.186 netmask 0xffffffc0 broadcast 666.42.86.191
>         media: Ethernet autoselect (100baseTX <full-duplex>)
>         status: active
> vr1: flags=3D8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu
> 1500 options=3Db<RXCSUM,TXCSUM,VLAN_MTU>
>         ether 00:00:24:c8:b3:29
>         media: Ethernet autoselect (none)
>         status: no carrier
> vr2: flags=3D8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu
> 1500 options=3Db<RXCSUM,TXCSUM,VLAN_MTU>
>         ether 00:00:24:c8:b3:2a
>         media: Ethernet autoselect (none)
>         status: no carrier
> vr3: flags=3D8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu
> 1500 options=3Db<RXCSUM,TXCSUM,VLAN_MTU>
>         ether 00:00:24:c8:b3:2b
>         media: Ethernet autoselect (none)
>         status: no carrier
> ath0: flags=3D8843<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



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