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- The last sed expression ensures the unicast/multicast bit is set to zero
- The greedy space replacements are for portability across UNIX seds (note there's TWO spaces and not just one, as this web shows, in s/^ */)
There is 1 alternative - vote for the best!
Original author unknown (I believe off of a wifi hacking forum).
Used in conjuction with ifconfig and cron.. can be handy (especially spoofing AP's)
Use the following variation for FreeBSD:
openssl rand 6 | xxd -p | sed 's/\(..\)/\1:/g; s/:$//'
Just increase the 1 at the end if you want to generate more than one.
(Alternative to "| head -n N" you could use the -b flag of od: -b $[6*N]
I did not come up with this one myself, but found this somewhere else several months ago.
If you can do better, submit your command here.
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