Wake on Lan Ports

Symptoms

Networking equipment such as routers and switches filter the Wake on Lan packet, so the remote PCs are not woken.

Cause

As Wake on Lan (WoL) is directed at an ethernet address rather than an IP address, they must first be encapsulated in a TCP packet and then broadcast to the apropriate subnet. These broadcast packets may be filtered by some networking equipment.

Resolution

Whilst different network equipment will require different configuration, the following information should help your network manager allow the packets.

TaskForceCO2 uses two methods to contact the remote subnet. The first method uses a TCP packet on port 7, the second use a TCP packet on port 32767.