5.18.191.0-5.18.191.255 5.18.191.0/24
5.18.192.0-5.18.207.255 5.18.192.0/20
5.18.208.0-5.18.211.255 5.18.208.0/22
5.18.212.0-5.18.213.255 5.18.212.0/23