can't add interfaces to bridge

[Steve Franks]

On Mon, Sep 29, 2008 at 2:17 AM, Nikos Vassiliadis <nvass at teledomenet.gr> wrote:
> On Saturday 27 September 2008 20:52:43 Steve Franks wrote:
>> I'm getting the following error - ifconfig: BRDGADD ath0: Invalid
>> argument
>>
>> Given the following commands (which work for my tap interface with
>> qemu on 7.1, but apparently not with two regular network cards on
>> 6.3):
>>
>> sudo kldload if_bridge
>> sudo ifconfig ath0 down
>> sudo ifconfig rl0 down
>> sudo ifconfig bridge0 destroy
>> sudo ifconfig bridge0 create
>> sudo ifconfig bridge0 addm ath0
>> sudo ifconfig bridge0 addm rl0
>> sudo ifconfig bridge0 up
>> sudo ifconfig ath0 up
>> sudo ifconfig rl0 up
>> sudo dhclient bridge0
>> ifconfig
>>
>> I get the following output:
>>
>> [steve at aire /usr/home/steve]$ bridge
>> kldload: can't load if_bridge: File exists
>
>> net.link.tap.user_open: 1 -> 1
>> net.link.tap.devfs_cloning: 1 -> 1
>> net.link.tap.up_on_open: 1 -> 1
>
> I don't see any sysctl related commands in the script above.
> ?
>
>> ifconfig: BRDGADD ath0: Invalid argument
>> ifconfig: BRDGADD rl0: Invalid argument
>> DHCPDISCOVER on bridge0 to 255.255.255.255 port 67 interval 8
>> ath0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
>>         inet 192.168.2.69 netmask 0xffffff00 broadcast 192.168.2.255
>>         ether 00:13:f7:4a:0f:a8
>>         media: IEEE 802.11 Wireless Ethernet autoselect (DS/1Mbps)
>>         status: no carrier
>>         ssid "" channel 3
>>         authmode OPEN privacy ON deftxkey 1 wepkey 1:104-bit txpowmax 39
>>         bmiss 7 protmode CTS burst bintval 100
>> rl0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
>>         options=8<VLAN_MTU>
>>         inet 192.168.1.1 netmask 0xffffff00 broadcast 192.168.1.255
>>         ether 00:01:6c:16:44:6f
>>         media: Ethernet autoselect (none)
>>         status: no carrier
>> plip0: flags=108810<POINTOPOINT,SIMPLEX,MULTICAST,NEEDSGIANT> mtu 1500
>> lo0: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> mtu 16384
>>         inet6 fe80::1%lo0 prefixlen 64 scopeid 0x4
>>         inet6 ::1 prefixlen 128
>>         inet 127.0.0.1 netmask 0xff000000
>> bridge0: flags=8802<BROADCAST,SIMPLEX,MULTICAST> mtu 1500
>>         ether ea:57:36:3c:28:0c
>>         priority 32768 hellotime 2 fwddelay 15 maxage 20
>> [steve at aire /usr/home/steve]$
>
> (I think that)
> Your wireless card doesn't seem to be in AP mode and if_bridge
> can only bridge 802.11 interfaces in AP mode with ethernet inter-
> faces. Two things though:
> 1) I am not sure if it complains about it as it does above
>   ifconfig: BRDGADD ath0: Invalid argument
> 2) I do not undestand why it complains about rl0.
>
> What are you trying to achieve? Maybe there is some other way...
>

Just trying to string some old printers & the like off my rl0 and get
them onto the local wifi net via ath0.  ath0 is connected to an AP.

Steve