In this tutorial, we are going to learn about IsInterfaceLocalMulticast() function of net package in go with example.
IsInterfaceLocalMulticast() function is used to check whether ip is an interface-local multicast address or not in net package.
function prototype:
func (ip IP) IsInterfaceLocalMulticast() bool
Example:
package main
import (
"fmt"
"net"
)
func main() {
ipv4_ip := net.ParseIP("255.255.255.0")
is_multicast_address := ipv4_ip.IsInterfaceLocalMulticast()
if is_multicast_address == true {
fmt.Println("255.255.255.0 is an interface-local multicast address.")
} else {
fmt.Println("255.255.255.0 is not an interface-local multicast address.")
}
ipv6_ip := net.ParseIP("ff01::1")
is_multicast_address = ipv6_ip.IsInterfaceLocalMulticast()
if is_multicast_address == true {
fmt.Println("ff01::1 is an interface-local multicast address.")
} else {
fmt.Println("ff01::1 is not an interface-local multicast address.")
}
ipv6_ip = net.ParseIP("2000::")
is_multicast_address = ipv6_ip.IsInterfaceLocalMulticast()
if is_multicast_address == true {
fmt.Println("2000:: is an interface-local multicast address.")
} else {
fmt.Println("2000:: is not an interface-local multicast address.")
}
}
Output:
255.255.255.0 is not an interface-local multicast address. ff01::1 is an interface-local multicast address. 2000:: is not an interface-local multicast address.
What is multicast address of interface-local ?
The interface-local scope expands a single interface only. A multicast address of interface-local scope is used only for loopback delivery of multicasts within a node. It means It’s form interprocess communication within a computer. interface-local multicast addresses may be joined on any interface.
To learn more about golang, Please refer given below link:
https://www.techieindoor.com/go-lang-tutorial/
References: https://golang.org/pkg/