Hi Jim,
Thank your for taking the time to file this bug and sending this script.
It is indeed very very interesting and I definitely gonna consider it
for the next release of PowerNap (3.x).
Now, I just want to get something straight:
When target/monitored machines are sleeping (suspended, hibernated,
etc), and an ARP packet for any of those machines is heard over the
network, then your script sends a WoL packet to the machine from which
an ARP was sent to?
So for example, if I have ServerA (192.168.1.100) suspended, and some
router/switch tries to discover if ServerA is in the local network, by
sending broadcasting ARP messages for 192.168.1.100 to discover its MAC
address, then your script will sniff that ARP packet and send a WoL to
192.168.1.100?
Now, the way I think I can integrate your script with powerwake, is that
for the next Ubuntu release, I'd like to have a powerwaked daemon that
keeps track of all the machine on the local network that are using
PowerNap. This way we have some kind of client/'server approach to
administer PowerNap clients from the server (such as schedule wakeups,
poweroffs, and things like that), and I believe your script fits here
perfectly.
Finally, I'm marking this bug as invalid for Ubuntu, but open it in the
project's bug tracking system as this is a feature request and should be
handled there.
Thanks a lot!! This is indeed awesome!
** Also affects: powernap
Importance: Undecided
Status: New
** Changed in: powernap (Ubuntu)
Status: New => Invalid
** Changed in: powernap
Status: New => Confirmed
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https://bugs.launchpad.net/bugs/737479
Title:
powerwake enhancement, monitor ARP requests for sleeping machines and
send magic packets
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