穿越防火牆於SIP之研究與實作

張昆敬

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穿越防火牆於SIP之研究與實作

The Research and Implementation on SIP-based Firewall Traversal

張昆敬 , Masters　　Advisor：黃紹華　　

繁體中文

SIP ； HTTP ； HTTPS ；防火牆； SIP ； HTTP ； HTTPS ； Firewall

Abstract │ Reference (18) │ Times Cited (1) │ Altmetrics

Abstract 〈TOP〉

Parallel Abstract 〈TOP〉

This thesis analyzed the problems in networking environment which the SIP protocol needs to face. The most important is the firewall.
SIP is an important protocol mechanism in the VoIP technology, and the video and audio transmission technology is used in the network widely. But there are some challenge that need to overcome. For example, the NAT and the firewall will restrict the SIP session on the internet. Nowadays, many researchs like UPnP, STUN, ALG etc. can solve the limitation problem about the NAT, but there is no standard solution to solve the problem of firewall.
The thesis offers two methods to traverse the firewall by HTTP and HTTPS. The HTTP and HTTPS can open a safe channel which is defferent with the original SIP session for the transmittion of internet packet.And the most important thing is that the solution solves the problem we find out but does not change any network security structure in client’s and enterprise’s network environment, so SIP and RTP packet can successfully traverse firewall. After that, there is performed and verified by erecting simulated environment of the enterprise’s firewall. Finally, it can be established at IP-based telecommunication system.
In the end for proving the result, seting up the firewall of interprise level to be the experiment environment and show the result by using the firewall traversal to traverse it.

Reference ( 18 ) 〈TOP〉

[2] 鍾建宇，NAT穿透法於SIP通訊協定之研究與實作，國立台北科技大學碩士論文，台北，民國九十六年。
連結：
[3] 鍾耀興，SIP通訊協定於NAT網路環境之改良與實作，國立台北科技大學碩士論文，台北，民國九十五年。
連結：
[4] 張舜傑，網路電信局之研究與實作，國立台北科技大學碩士論文，台北，民國九十六年。
連結：
[1] 賈文康，SIP會談起始協議操典，松崗，民國九十四年。
[5] J. Rosenberg, H. Schulzrinne, G. Camarillo, A. Johnston, J. Peterson, R. Sparks, E. Scholler, “Session Initiation Protocol, RFC3261, IETF, June. 2002.

Times Cited (1) 〈TOP〉

王筑霆(2013)。巨量影音串流安全通道之研究與實作。臺北科技大學電機工程系研究所學位論文。2013。1-74。

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