Internet Direct (Indy) Version 9.0.1 Beta
TIdMappedPortUDP.MappedHost
Identifies the host name or IP address for remote system.

property MappedHost: string;
Description
MappedHost is a String property that identifies the host name or IP address for the connection to a remote system. MappedHost is used in DoUDPRead when the surrogate UDP connection is created for the current connection request.