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Go CIDR Overlap
195 words1 min read
package main
import (
"fmt"
"net"
"os"
)
func main() {
cidr1 := "27.53.68.54/32"
cidr2 := "27.53.68.54/24"
_, n1, err := net.ParseCIDR(cidr1)
if err != nil {
fmt.Println(err)
os.Exit(1)
}
_, n2, err := net.ParseCIDR(cidr2)
if err != nil {
fmt.Println(err)
os.Exit(1)
}
fmt.Println(n1, n1.Contains(n2.IP))
fmt.Println(n2, n2.Contains(n1.IP))
}