| 多进程VoIP网关中SIP穿越NAT的实现 |
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| 引用本文： | 徐静华,左冬红,潘鹏,叶婷.多进程VoIP网关中SIP穿越NAT的实现[J].计算机工程,2006,32(1):145-147. |
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| 作者姓名： | 徐静华 左冬红 潘鹏 叶婷 |
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| 作者单位： | 华中科技大学电子与信息工程系,武汉,430074 |
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| 摘 要： | 在多进程的VoIP网关中，需要识别不同的SIP包，判断是否需要穿越NAT，该文参考SIP的ALG草案，将下层的SIP消息发送到应用层来进行识别区分，将需要穿越NAT的SIP消息修改后转发出去，而不需要穿越NAT的SIP消息就不作处理，直接转发。该方案无须扩展SIP协议，就实现了在多进程的VoIP网关这样的应用场景下的多路SIP会话。
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| 关 键 词： | VoIP SIP NAT ALG |
| 文章编号： | 1000-3428（2006）01-0145-03 |
| 收稿时间： | 2005-01-04 |
| 修稿时间： | 2005-01-04 |
Implementation of SIP Through NAT in Multi-process VoIP Gateway |
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| XU Jinghua,ZUO Donghong,PAN Peng,YE Ting.Implementation of SIP Through NAT in Multi-process VoIP Gateway[J].Computer Engineering,2006,32(1):145-147. |
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| Authors: | XU Jinghua ZUO Donghong PAN Peng YE Ting |
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| Affiliation: | Department of Electronics and Information Engineering, Huazhong University of Science and Technology, Wuhan 430074 |
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| Abstract: | It needs to judge whether needs to through NAT in multi-process VoIP gateway.This paper refers to the SIP ALG draft which describer an application level gateway(ALG) for the SIP.It parses the SIP message in application-layer,and modifies SIP messages which need to through NAT.This scheme implements multi-session in multi-process VoIP gateway,no extension of the SIP. |
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| Keywords: | VoIP SIP NAT ALG |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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