Jasne, ze budu, ale ten cat mu vypise na akom rozhrani je dana mac registrovana, cize sa dokaze dopatrat odkial prisla. Jemu pravdepodobne podla popisu ide o to, ze chce vediet, ktore jubicko sprostredkovalo spojenie pre danu mac ako prve.

XM.v5.3.5.# cat /proc/net/arp
IP address       HW type     Flags       HW address            Mask     Device
192.168.2.3      0x1         0x2         00:9C:02:A0:38:85     *        br0
XM.v5.3.5.# ip a l
1: lo: <LOOPBACK,UP> mtu 16436 qdisc noqueue
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
2: gre0: <NOARP> mtu 1476 qdisc noop
    link/gre 0.0.0.0 brd 0.0.0.0
3: eth0: <BROADCAST,MULTICAST,ALLMULTI,PROMISC,UP> mtu 1500 qdisc pfifo_fast qlen 500
    link/ether 00:27:22:cb:21:24 brd ff:ff:ff:ff:ff:ff
4: eth1: <NO-CARRIER,BROADCAST,MULTICAST,ALLMULTI,PROMISC,UP> mtu 1500 qdisc pfifo_fast qlen 500
    link/ether 02:27:22:cb:21:24 brd ff:ff:ff:ff:ff:ff
5: br0: <BROADCAST,MULTICAST,ALLMULTI,UP> mtu 1500 qdisc noqueue
    link/ether 00:27:22:ca:21:24 brd ff:ff:ff:ff:ff:ff
    inet 192.168.2.13/24 brd 192.168.2.255 scope global br0
    inet 169.254.33.36/16 brd 169.254.255.255 scope global br0
6: wifi0: <BROADCAST,MULTICAST,UP> mtu 1500 qdisc ath_wme qlen 500
    link/ether 00:27:22:ca:21:24 brd ff:ff:ff:ff:ff:ff
7: ath0: <BROADCAST,MULTICAST,ALLMULTI,PROMISC,UP> mtu 1500 qdisc noqueue
    link/ether 00:27:22:ca:21:24 brd ff:ff:ff:ff:ff:ff

Tu vidim, ze mi dana mac adresa prisla z br0, cize z ethernetovej strany.
Edit: Vlastne mas pravdu, kedze zariadenie je v bridge tak si to vsetko nahadzuje do br0, takze nevidim nic lebo tam su vsetky rozhrania. Takze zo zistovania nic nebude;o).