Go mask network IP

gistfile1.txt

package main

import (
	"fmt"
	"net"
)

//foo

func main() {
	ip := net.ParseIP("127.0.0.1")
	fmt.Println(ip)
	mask := ip.DefaultMask()
	network := ip.Mask(mask)
	ones, bits := mask.Size()
	fmt.Println("Address is ", ip.String(),
		" Default mask length is ", bits,
		"Leading ones count is ", ones,
		"Mask is (hex) ", mask.String(),
		" Network is ", network.String())

}