generate random mac address

2>/dev/null dd if=/dev/urandom bs=1 count=6 | od -t x1 | sed '2d;s/^0\+ //;s/ /:/g'

By: jianingy
2010-04-30 00:44:21

1 Alternatives + Submit Alt

What Others Think

buzzy · 635 weeks ago
This may require some filtering. There are a few mask bits at the beginning such as the multicast bit. If you've ever tried changing a MAC address from "00:aa:bb:cc:dd:ee" to "01:aa:bb:cc:dd:ee", you may have noticed some devices like Cisco switches become unhappy. Probably better to leave the first byte set to "00" and just generate 5 random bytes.
mulad · 635 weeks ago
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KGF123 · 87 weeks and 6 days ago ????? ??? ????? ???? SEO ????? ????? ????? ???? ????? ????? ??? ???? ???? ??????? Search Engine Optimization ??? ????? ??????????? ?? ????? ?????????? ????? ????? ?? ????
seofox · 21 weeks and 5 days ago
seofox · 20 weeks and 3 days ago

What do you think?

Any thoughts on this command? Does it work on your machine? Can you do the same thing with only 14 characters?

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