From the mailing list:
On later versions of Linux distros iproute2 replaces ifconfig with ip
Starting at line 601 at
It looks like ifconfig is hard-written into the logic. Probably needs a
patch to check for the ip command.
We should probably check for the presence of the ip utility and use that, if present.
I added support for the ip tool in branch topic/jschipp/broctl-ip-support
Merged into master.