LOCAL (Private)
10.0.0.0 — 10.255.255.255
172.16.0.0 — 172.31.255.255
192.168.0.0 — 192.168.255.255

OSI 7 https://ru.wikipedia.org/wiki/%D0%A1%D0%B5%D1%82%D0%B5%D0%B2%D0%B0%D1%8F_%D0%BC%D0%BE%D0%B4%D0%B5%D0%BB%D1%8C_OSI#%D0%A3%D1%80%D0%BE%D0%B2%D0%BD%D0%B8_%D0%BC%D0%BE%D0%B4%D0%B5%D0%BB%D0%B8_OSI

