package main

import(
	"fmt"
	"net"
)

func main(){
	addrs, err := net.InterfaceAddrs()
	if err != nil{
		fmt.Println(err)
		return
	}
	for _, value := range addrs{
		if ipnet, ok := value.(*net.IPNet); ok && !ipnet.IP.IsLoopback(){
			if ipnet.IP.To4() != nil{
				fmt.Println(ipnet.IP.String())
			}
		}
	}
}