

MacOS and Linux with Avahi installed) and are only usable for local communication in the LAN segment. These are automatically generated by some operating systems and (e.g. The entire 127.*.*.* network is reserved for (host-)local networking. Is the localhost address, used by each host to talk to itself, there is always a special loopback interface preconfigured with this address, you never assign it to a real network device. The whole network 0.*.*.* is reserved for special purposes (like DHCP).ġ0.*.*.* 172.16.*.* - 172.31.*.* 192.168.*.*Īre private addresses - you can use them freely within your own LAN. The "ANY" address that is used by programs to speak to all network interfaces, it is never used directly.

The following special addresses and networks exist in IPv4:
