DefaultGatewayIP - returns: default gatewat IP.

GetAllLocalV4Addresses - returns IPv4 addresses of all local interfaces.

GetAllLocalV6Addresses - returns IPv6 addresses of all local interfaces.

GetFreePort - get unused local port Note there is no guarantee that port will not be in use right after finding it.

GetFreeTCPPort - get unused TCP local port Note there is no guarantee that port will not be in use right after finding it.

GetFreeUDPPort - get unused UDP local port Note there is no guarantee that port will not be in use right after finding it.

GetInterfaceByIndex - get interface info by its index.

InterfaceByIPAddr - Get network interface object by it's local IP address.