sudo ethtool enp3s0

....
....
Supports Wake-on: pumbg
    Wake-on: g
    Current message level: 0x00000033 (51)
                   drv probe ifdown ifup

sudo ethtool -s enp3s0 wol g

enp3s0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 192.168.1.213  netmask 255.255.255.0  broadcast 192.168.1.255
        inet6 fe80::a680:65a4:a006:5bbc  prefixlen 64  scopeid 0x20<link>
        ether d8:cb:8a:3f:32:d2  txqueuelen 1000  (以太网)
        RX packets 890331  bytes 1003253740 (1.0 GB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 555010  bytes 73345907 (73.3 MB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

sudo apt install wakeonlan

wakeonlan d8:cb:8a:3f:32:d2

Sending magic packet to 255.255.255.255:9 with d8:cb:8a:3f:32:d2

FF FF FF FF FF FF d8 cb 8a 3f 32 d2 d8 cb 8a 3f 32 d2 ....... 

#!/usr/bin/env python
# -*- encoding: utf-8 -*-
"""
Small module for use with the wake on lan protocol.

"""
from __future__ import absolute_import
from __future__ import unicode_literals

import argparse
import socket
import struct
import re


BROADCAST_IP = \'255.255.255.255\'
DEFAULT_PORT = 9


def create_magic_packet(macaddress):
    """
    Create a magic packet.

    A magic packet is a packet that can be used with the for wake on lan
    protocol to wake up a computer. The packet is constructed from the
    mac address given as a parameter.

    Args:
        macaddress (str): the mac address that should be parsed into a
            magic packet.

    """
    if len(macaddress) == 12:
        pass
    elif len(macaddress) == 17:
        sep = macaddress[2]
        macaddress = macaddress.replace(sep, \'\')
    else:
        raise ValueError(\'Incorrect MAC address format\')

    # Pad the synchronization stream
    data = b\'FFFFFFFFFFFF\' + (macaddress * 16).encode()
    send_data = b\'\'

    # Split up the hex values in pack
    for i in range(0, len(data), 2):
        send_data += struct.pack(b\'B\', int(data[i: i + 2], 16))
    return send_data


def send_magic_packet(*macs, **kwargs):
    """
    Wake up computers having any of the given mac addresses.

    Wake on lan must be enabled on the host device.

    Args:
        macs (str): One or more macaddresses of machines to wake.

    Keyword Args:
        ip_address (str): the ip address of the host to send the magic packet
                     to (default "255.255.255.255")
        port (int): the port of the host to send the magic packet to
               (default 9)

    """
    packets = []
    ip = kwargs.pop(\'ip_address\', BROADCAST_IP)

    port = kwargs.pop(\'port\', DEFAULT_PORT)
    for k in kwargs:
        raise TypeError(\'send_magic_packet() got an unexpected keyword \'
                        \'argument {!r}\'.format(k))



    for mac in macs:
        packet = create_magic_packet(mac)
        packets.append(packet)

    sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
    sock.setsockopt(socket.SOL_SOCKET, socket.SO_BROADCAST, 1)

    # 如果输入的是域名，将域名转换为IP
    ipv4_regex = re.compile(r\'(?:25[0-5]|2[0-4]\d|[0-1]?\d?\d)(?:\.(?:25[0-5]|2[0-4]\d|[0-1]?\d?\d)){3}\',re.IGNORECASE)
    if not ipv4_regex.match(ip):
        ip=socket.gethostbyname(ip)
    sock.connect((ip, port))
    for packet in packets:
        sock.send(packet)
    sock.close()
    print(\'sent to \'+ip)


def main(argv=None):
    """
    Run wake on lan as a CLI application.

    """
    parser = argparse.ArgumentParser(
        description=\'Wake one or more computers using the wake on lan\'
                    \' protocol.\')
    parser.add_argument(
        \'macs\',
        metavar=\'mac address\',
        nargs=\'+\',
        help=\'The mac addresses or of the computers you are trying to wake.\')
    parser.add_argument(
        \'-i\',
        metavar=\'ip\',
        default=BROADCAST_IP,
        help=\'The ip address of the host to send the magic packet to.\'
             \' (default {})\'.format(BROADCAST_IP))
    parser.add_argument(
        \'-p\',
        metavar=\'port\',
        type=int,
        default=DEFAULT_PORT,
        help=\'The port of the host to send the magic packet to (default 9)\')
    args = parser.parse_args(argv)
    send_magic_packet(*args.macs, ip_address=args.i, port=args.p)


if __name__ == \'__main__\':  # pragma: nocover
    main()

python3 WakeOnWan.py -i test.tpddns.cn -p 9  d8:cb:8a:3f:32:d2

python3 WakeOnWan.py -i 192.168.1.105 -p 9  d8:cb:8a:3f:32:d2

#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <netdb.h>

void fill_magic_buf(void *magic_buf, void *mac)
{
        int i;
        char *ptr;

        ptr = magic_buf;
        memset(ptr, 0xFF, 6);
        ptr += 6;

        for(i = 0; i < 16; ++i) {
                memcpy(ptr, mac, 6);
                ptr += 6;
        }
}

void usage(void)
{
        printf("usage...\n");
}

int main(int argc, char **argv)
{
        int s;
        int packet_num = 10;
        char c;

        unsigned char mac[6] = {0x00, 0x1A, 0x92, 0xE5, 0x1B, 0xA7};
        char dstip[256] = "192.168.9.180";
        int port = 9;

        struct sockaddr_in address;
        char magic_buf[6 + 6 * 16] = {0};

        daemon(0,0);    /* run in background */

        while((c = getopt(argc, argv, "d:m:p:")) != -1) {
                switch(c) {
                case \'d\':
                        strcpy(dstip, optarg);
                        break;
                case \'m\':
                        sscanf(optarg, "%x:%x:%x:%x:%x:%x",
                                (unsigned int*)&mac[0], (unsigned int*)&mac[1],
                                (unsigned int*)&mac[2], (unsigned int*)&mac[3],
                                (unsigned int*)&mac[4], (unsigned int*)&mac[5]);
                        break;
                case \'p\':
                        port = atoi(optarg);
                        break;
                default:
                        usage();
                        return -1;
                }
        }

        s = socket(AF_INET, SOCK_DGRAM, 0);

        if (s == -1) {
                perror("Opening socket");
                exit(EXIT_FAILURE);
        }

        memset(&address, 0, sizeof(struct sockaddr_in));
        address.sin_family = AF_INET;
        address.sin_addr.s_addr = inet_addr(dstip);
        address.sin_port = htons(port);

        fill_magic_buf(magic_buf, mac);

        /* ten packets. TODO: use ping to check whether the destination is on or else. */
        while (packet_num-- > 0) {
                if (sendto(s, magic_buf, sizeof(magic_buf), 0,
                     (struct sockaddr *)&address, sizeof(address)) < 0) {
                        printf("sendto\n");
                        exit(EXIT_FAILURE);
                }
                sleep(1);
        }

        exit(EXIT_SUCCESS);
}

.config/wol.sh

#!/bin/sh
echo "12345678" | sudo -S ethtool -s enp3s0 wol g