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Application of STUN/TURN/ICE protocol in P2P SIP (I)

1 Description This article describes in detail the P2P SIP telephone process based on the STUN series protocol, which involves the interaction of SIP signaling, the principles of P2P, and Protocol interaction of STUN, TURN, and ICE. The interaction between service units mentioned in this article uses UDP, which does not involve TCP holes and other TCP-related operations. This document assumes that neither p

Principles and implementation of P2P UDP Nat penetration-enhancement (with modified source code) (zz)

Principles and implementation of P2P UDP-based NAT penetration-enhancement (with modified source code) Keywords: P2P UDP Nat principle penetration traveral hierarchical Ric coneAuthor: hwycheng LEO (FlashBT@Hotmail.com)Source code download: http://bbs.hwysoft.com/download/UDP-NAT-LEO.rarReference: http://midcom-p2p.sourceforge.net/draft-ford-midcom-p2p-01.txtPrin

P2P networks "freely" Break Through Nat "secrets"

Meaning of NAT traversal: Nat is designed to save IP addresses, but it hides the addresses of Intranet machines. "unexpected" plays a role in security. Invisible to the outside, non-transparent internal networks are also "fair" applications of the Internet, and the idea of "sharing" is not acceptable, especially the purpose of "Mutual Service" in P2P networks, therefore, traversing NAT has always been what P2

P2P direct connection? Transfer via server?

current client may communicate with multiple other clients, there is a problem of channel selection for communication with each other client, therefore, you need a dictionary ObjectManager to manage them. (2) When a P2P channel is successfully created, ping and compare it for the first time and record the result to the dictionary. (3) The timing engine checks an

[Switch] P2P solution for network video monitoring

I. Summary This article analyzes the characteristics of the growing demand for video surveillance for residential and personal networks, and provides a cost-effective and easy-to-use P2P solution for large-scale deployment. Due to limited space, this article only provides the ideas of the solution, and does not elaborate on more in-depth technical details. If you are interested, you can continue to study in depth. Ii. Keywords Ipcam,

P2P network Traversal

Http://blog.csdn.net/mazidao2008/article/details/4933730 -------------------------------------------------------------- Meaning of NAT traversal: Nat is designed to save IP addresses, but it hides the addresses of Intranet machines. "unexpected" plays a role in security. Invisible to the outside, non-transparent internal networks are also "fair" applications of the Internet, and the idea of "sharing" is not acceptable, especially the purpose of "Mutual Service" in

P2P technical architecture and Classification

P2P technology has three architecture modes: centralized directory structure represented by Napster, pure P2P network structure represented by Gnutella, and hybrid P2P network structure. From the perspective of P2P technology, the P2P technology so far can be divided into fo

[Reprint] multicast explained in Flash 10.1 P2P

Distribution among peers. it's very cost valid tive as the stream is distributed among peers. you can either distribute stream from a client or FMS (with the future release ). Native IP MulticastThis one is distributed over the network not using P2P connection, but using network routing capabilities. it mostly works in internal, enterprise, VPN or LAN networks-basically in closed networks, which supports

Principles of Internet (complex network environment) voice and video text file transmission, P2P

The holiday is over, and I return to school again. I have been doing WinForm before, and now I have finished it. Then I am going to apply it on the Internet. After a long period of exploration and study, I finally got a rough outline in my mind, understand the General Principles An instant messaging software similar to QQ is used as an example. There are a lot of chat program source code that can be downloaded on the Internet, including the QQ series of source code that implements file transmiss

Flash P2P source code

placecall (tmpoppname: String, tmpoppid: string ){Msgtxt. Text = "calling:" + tmpoppname + "...";// Try to play the target videoControlstream = new netstream (mync, tmpoppid );Controlstream. addeventlistener (netstatusevent. net_status, controlhandler );Controlstream. Play ("control" + tmpoppname );// Publish point-to-point videos externallyOutgoingstream = new netstream (mync, netstream. direct_connections );Outgoingstream. addeventlistener (netstatusevent. net_status, outgoingstreamhandler );

Faster and more efficient: P2P preparation and upgrade P4P

Driver House [original] by: Shang Fang Wen QPeople who are crazy about downloading Bt and donkey must be familiar with P2P (peer-to-peer) networks. However, while facilitating sharing, the bandwidth usage that comes along with it is also a headache. Therefore, the distributed computing industry association (dcia) proposed the "P4P" network protocol concept, and Verizon's recent experiments also prove that this P2P

C # simple p2p File Transfer instance

Although many P2P networks do not require indexing servers or central servers and clients can communicate with each other directly, figure 1 below shows the basic working principles of P2P networks. Generally, the P2P concept includes a central Indexing Server, which does not store any files, it only stores information about all users logged on to the network, IP

P2P solution for network video monitoring

I. Summary This article analyzes the characteristics of the growing demand for video surveillance for residential and personal networks, and provides a cost-effective and easy-to-use P2P solution for large-scale deployment. Due to limited space, this article only provides the ideas of the solution, and does not elaborate on more in-depth technical details. If you are interested, you can continue to study in depth. Ii. Keywords Ipcam,

P2P bypass Nat

/// What to do? A (inside company) connect to cnblogs by http_proxy and post a document with content public_addr, private_addr, and find whether any other clients connect it too. If find, then try to connect them, and display the information of them Later, user can select another client, and send files or message /// Python send file by HTTPHttp://stackoverflow.com/questions/68477/send-file-using-post-from-a-python-scriptHttp://stackoverflow.com/q

P2P functions in Flash player10.1 + fms4

of the Code in this article: Test method: the sender clicks "generate initial data", then "add data to be sent", and then the receiver clicks "receive data" In addition, if you open more "receivers", you can verify whether the "receiver" can become a data provider after receiving the data and provide data to other receivers, that is, P2P"The more people, the faster the speed, the more stable the transmission"Symptom However,

P2P vs scene: explained

Seems that appear in the torrent world do not understandMemorandum or methodology behind scene and P2P, so perhaps it's time that we explain a little bit about the history of Peer to Peer, open torrent sites, the "P2P" groups, and "The scene ". there is alot of historical context, propaganda, truth, and hidden despiseThat comes from this mystery, And we'll dig a little deeper now.For years, peer to peer com

New P2P communication base on smart Proxy Server

added. it will result in spending more money on purchasing and maintaining these servers. obviusly, it is not a good approach. Solution I discovered a P2P based approach to solve the problem. The core of this approach is smart Proxy Server (SPS ). SPS is the Client Connecting to the server directly. Other clients connect to the SPS, instead of ing to server directly. The revised pattern ha

P2P solves the bottleneck of data server transmission in IPTV

, the streaming media technology, which shows strong market demand on the personal computer platform, has gradually shifted to the embedded platform. Media consumption demands for personal portability and household appliances provide a market opportunity for this platform transfer. IPTV is at the forefront of this consumption revolution. Most people in the industry think that IPTV contains huge commercial benefits, but few people are still involved, one of the reasons is the speed of the network

Description of how to prevent LAN users from downloading P2P software

[Fault symptom]Some users in the LAN use P2P download tools such as BT, Thunder, donkey, and dianpan to download the files. This causes other users in the LAN to experience slow Internet access and network speed cards. [Fault Cause] When a host in the LAN uses P2P for download, P2P software will occupy a large amount of bandwidth from the LAN to the Internet egre

Ubuntu10.10 using P2P Update Software

P2P (Peer-to-Peer) is a "point-to-point technology". It can also be understood as direct data transmission between users. typical P2P technology representatives include BT and e. Many Linux users once dreamed that it would be nice to deliver software packages at a high speed like BT and donkey-not only to speed up their own speed, you can also share your downloaded software package with others-"everyone for

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