Wake-on-LAN
Wake powered-off (but plugged-in) machines remotely by sending a magic packet. Difference from BMC: WOL needs no out-of-band management port, but the NIC must support WOL and the motherboard must have Wake-on-LAN enabled.
Docs: Host Management | BMC / IPMI
When to Use
- Wake a batch of machines before the shift starts → batch wake / scheduled wake
- Wake a batch at a fixed weekly time → scheduling
Entry: Management → Wake-on-LAN (/wol).
Task 1: Single wake
Enter the MAC address + broadcast address, click Wake — a magic packet is sent to the MAC. Any machine that's off (S5) but has its NIC powered can be woken.
Task 2: Batch wake
Select multiple hosts from the host list → batch wake.
Task 3: Scheduling
- Create a schedule: MAC + wake time, one-shot or recurring (e.g. every Monday 8:00)
- Task list: view and delete schedules
Task 4: History
Wake history: time, MAC, broadcast address, status — confirm the wake actually reached the target.
Notes
- The target must be plugged in and its NIC must support WOL (enable Wake-on-LAN in BIOS/firmware)
- A wrong broadcast address means the magic packet never reaches the target subnet — the default uses the local interface's broadcast address