Abstract: Techniques to manage communications between relay servers are described. A system may include multiple relay servers each having an enhanced relay control module. The enhanced relay control module may be operative to manage communications between private clients communicating over the first relay server and the second relay server. The enhanced relay control module may establish a media channel between control ports for the first and second relay servers when a port range attribute for at least one of the first or second relay servers is turned off. Other embodiments are described and claimed.

Abstract: A relay server authentication service for a relay server is described. An apparatus may include a proxy server to receive an authentication request for client authentication information from a first client to traverse a network address translation device. The apparatus may further include a relay server with a relay server authentication service module. The relay server authentication service module may be arranged to receive the authentication request from the proxy server, generate the client authentication information for the first client, and send an authentication response with the client authentication information to the first client through the proxy server. Other embodiments are described and claimed.