FW制御を行うSIP通信制御装置およびそのFW制御方法

Japanese Patent JP4372629

B2

To provide a technology for carrying out SIP communication with higher security and saving resources of a NAT/FW apparatus required for opening a pin hole.

A SIP communication apparatus 10 compares "a Global IP address and a Global port number" after conversion acquired when a message passes from a Private network through a Global network with "a Global IP address and a Global port number" acquired when a message passes from the Global network through the Private network. When they are not identical to each other, the apparatus 10 registers "the Global IP address and the Global port number" to a database 110 as a set of the IP address and the port number used for media transmission/reception. When they are identical to each other, the apparatus 10 does not register them to the database 110.

COPYRIGHT: (C)2006,JPO&NCIPI

JPS52155904	RESPONSE CONFIRMING SYSTEM FOR SIMULTANEOUS INFORMATION
JP3984763	Communication method and equipment
JP4762956	Systems and methods for managing call continuity in an IMS network environment

Junichiro Kuroki
Kazuhito Hayashi
Takaho Shibata

JP2004199275A

November 25, 2009

July 06, 2004

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Nippon Telegraph and Telephone Corporation

H04M3/00; H04L12/46; H04L12/66; H04L12/70

JP2003258836A
JP2004166031A
JP2002261788A
JP2003174466A
JP2004254014A
JP2005204216A
JP2003078571A
JP2002108729A

黒木 純一郎 Jun-ichiro KUROKI,SIPアプリケーションレベルゲートウェイ(SIP-ALG)におけるファイアウォール制御方式に関する一検討 A Study on Control Method of a Firewall Function in SIP Application Level Gateway(SIP-ALG),電子情報通信学会技術研究報告 Vol.102 No.693 IEICE Technical Report,日本,社団法人電子情報通信学会 The Institute of Electronics,Information and Communication Engineers,2003年 4月16日,第102巻,105-108頁

Akita Haruki
Keiichi Chino

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