thank you, that was the/an answer I was looking for. On 5/18/20 7:51 AM, Jonathan Billings wrote: > On Sun, May 17, 2020 at 07:46:00PM -0600, R C wrote: >> what port does ether-wake use? (I believe it is port 9? but not sure). > The 'ether-wake' command in net-tools doesn't use a port at all. It's > just a raw packet of EtherType 0x0842 as the so-called "Magic Packet" > <https://en.wikipedia.org/wiki/Wake-on-LAN#Magic_packet> > > For example, if you were to run: > > (assuming interface name 'eth0') > # tcpdump -i eth0 ether proto 0x0842 > > You'd see the ether-wake command's packet. If you strace the process, > you'll see the socket is created as > socket(AF_PACKET, SOCK_RAW, htons(0)). >