Abstract: A method, apparatus, and computer-readable media are presented that provide a configuration for communicating by a computer device with another computer device wherein network address translation that translate address information in packet headers can occur between the computer devices, and revealing, by the computer device to the other computer device, address information as seen by the computer device on its side of the network address translation, by including in a payload of a packet transmitted to the other computer device, an encoding of the address information as seen by the computer device.

Abstract: A method, apparatus, and computer-readable media are presented that provide a configuration for revealing occurrence of network address translation by receiving a packet that includes an encoding of a source port number and then determining whether a network address translation occurred on the packet by comparing the source port number against a predetermined port number.