func (n Network) Covers(o Network) bool {
	if len(n.Number) != len(o.Number) {
		return false
	}
	nMaskSize, _ := n.IPNet.Mask.Size()
	oMaskSize, _ := o.IPNet.Mask.Size()
	return n.Contains(o.Number) && nMaskSize <= oMaskSize
}
func (n Network) Covers(o Network) bool {
	if len(n.Number) != len(o.Number) {
		return false
	}
	nMaskSize, _ := n.IPNet.Mask.Size()
	oMaskSize, _ := o.IPNet.Mask.Size()
	return n.Contains(o.Number) && nMaskSize <= oMaskSize
}
func ( n Network ) Covers ( o Network ) bool { if len ( n . Number ) != len ( o . Number ) { return false } nMaskSize , _ := n . IPNet . Mask . Size ( ) oMaskSize , _ := o . IPNet . Mask . Size ( ) return n . Contains ( o . Number ) && nMaskSize <= oMaskSize }
// Contains returns true if Network covers o, false otherwise
Contains returns true if Network covers o false otherwise