Калькулятор IP подсетей 117.120.1.0-117.120.7.255
117.120.1.0-117.120.1.255
117.120.1.0/24
117.120.2.0-117.120.3.255
117.120.2.0/23
117.120.4.0-117.120.7.255
117.120.4.0/22
