然后在默认路由表上加多线负载均衡
ip ro del default
ip ro add default proto static nexthop via wlan0's_gateway_IP dev wlan0 weight 1 nexthop via wlan1's_gateway_IP dev wlan1 weight 1 nexthop via wlan2's_gateway_IP dev wlan2 weight 1 nexthop via wlan3's_gateway_IP dev wlan3 weight 1 # 这里是4个无线网卡命令