[Bro] Problem: Bro listening on two ethernet interfaces

[Vern Paxson]

> [/tmp]#  /usr/bin/time tcpdump -c 25000 -i eth2 -n -w /dev/null
> tcpdump: listening on eth2
> 26277 packets received by filter
> 1270 packets dropped by kernel
> 0.04user 0.25system 0:03.88elapsed 7%CPU (0avgtext+0avgdata 0maxresident)k
> 0inputs+0outputs (189major+123minor)pagefaults 0swaps
> 
> 
> [/tmp]#  /usr/bin/time tcpdump -c 25000 -i eth3 -n -w /dev/null
> tcpdump: listening on eth3
> 25188 packets received by filter
> 184 packets dropped by kernel