The widespread diffusion of private networks in SOHO scenarios is fostering an increased deployment of Network Address Translators (NATs). The presence of NATs seriously limits end-to-end connectivity and prevents protocols like the Session Initiation Protocol (SIP) from working properly. This document shows how the Address List Extension (ALEX), which was originally developed to provide dual-stack and multi-homing support to SIP, can be used, with minor modifications, to ensure end-to-end connectivity for both media and signaling flows, without relying on intermediate relay nodes whenever it is possible.

Providing End-to-End Connectivity to SIP User Agents Behind NATs / Baldi, Mario; DE MARCO, L; Risso, FULVIO GIOVANNI OTTAVIO; Torrero, Livio. - ELETTRONICO. - (2008), pp. 5902-5908. (Intervento presentato al convegno IEEE International Conference on Communications (ICC 2008), Advances in Networks & Internet Symposium tenutosi a Beijing (China) nel May 19-23, 2008) [10.1109/ICC.2008.1103].

Providing End-to-End Connectivity to SIP User Agents Behind NATs

BALDI, MARIO;RISSO, FULVIO GIOVANNI OTTAVIO;TORRERO, LIVIO
2008

Abstract

The widespread diffusion of private networks in SOHO scenarios is fostering an increased deployment of Network Address Translators (NATs). The presence of NATs seriously limits end-to-end connectivity and prevents protocols like the Session Initiation Protocol (SIP) from working properly. This document shows how the Address List Extension (ALEX), which was originally developed to provide dual-stack and multi-homing support to SIP, can be used, with minor modifications, to ensure end-to-end connectivity for both media and signaling flows, without relying on intermediate relay nodes whenever it is possible.
2008
9781424420759
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11583/1667223
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