At work we found a set
APC AP7920 switched rack PDUs.
A power distribution unit with a console / telnet / ssh / web interface.
But they didn't accept the DHCP offers at work, I found out from the
documentation they need a vendor specific dhcp option set. Which I can
disable in the configuration, after I get access via the network (the
serial access requires a special cable).
DHCP in
homeserver greenblatt to the rescue. Added to the configuration of ISC DHCP server:
option apc-vendor-cookie code 43 = string;
option apc-vendor-cookie 01:04:31:41:50:43;
and the unit accepts the DHCP offer and I can switch that option off in the
configuration. They are nice units, especially for far away server rooms.
Including the option to delay power-on of each outlet to avoid high power
surges and dependency problems.
Update 2012-01-01:
Later I noticed a PC
booting via PXE using the heavy duty boot environment was confused by the
apc option being set for all devices. Better solution for the above:
option apc-vendor-cookie code 43 = string;
if substring (option vendor-class-identifier, 0, 3) = "APC" {
option apc-vendor-cookie 01:04:31:41:50:43;
}