https://github.com/dalsh/wol-proxy

Forward magick packets from WAN to LAN

docker run aplagnol/wol-proxy 0.0.0.0:7 255.255.255.255:9

Listens on all interfaces port 7 UDP and forwards magick packets (if they are valid) to broadcast address port 9 UDP

You will probably need to use --net host option for this to be useful

You can set a whitelist of mac addresses that can be woken by the proxy by setting the MAC_ADDRESSES_WHITELIST value to a comma-separated list of mac addresses.

docker run aplagnol/wol-proxy 0.0.0.0:7 255.255.255.255:9 -e MAC_ADDRESSES_WHITELIST="11:11:11:11:11:11,22:22:22:22:22:22"