This version of Unity is unsupported.
Removed in version 2018.4.36

Network.HavePublicAddress

Obsolete The legacy networking system has been removed in Unity 2018.2. Use Unity Multiplayer and NetworkIdentity instead.

Declaration

public static bool HavePublicAddress();

Description

Check if this machine has a public IP address.

It checks all the network interfaces for IPv4 public addresses and returns true if one address is found.