multicast vpn

IP multicast (also called multicast or multicast) technology allows one or more hosts (Multicast sources) to send a single packet to multiple hosts (once and simultaneously) TCP/IP network technology. Multicast, as a one-to-multiple-point communication, is one of the effec

I. Overview:I received A friend's question in my blog. After phone communication, I learned the approximate situation:. the headquarters has a leased line to partner B. the partner side is not convenient to add a back-to-point route. When the Headquarters accesses the partner, PATC is implemented. now, if you want to connect the branch L2L VPN to the headquarters and PAT to the partner, the traffic from the branch to the partner is routed to the loopb

Recently, I was writing a Distributed Instant chat program. To enable normal communication between Intranet users, I want to use multicast to broadcast data" According to the query data, UDP broadcast can only be effective on the Intranet (the same network segment), while Multicast can better implement mass data across network segments. Introduction There are three transmission modes: unicast,

Source: http://158067568.iteye.com/blog/901052udpbroadcast and Multicast Author: Legend QQ: 158067568 We recommend that you do not connect to UDP before transmitting information. In other words, the client sends information to the server. The client only needs to give the Server IP address and port number, and then encapsulate the information in a message to be sent and send it out. The client does not care whether the server exists or whether it can

IP multicast (also called multicast or multicast) technology allows one or more hosts (Multicast sources) to send a single packet to multiple hosts (once and simultaneously) TCP/IP network technology. Multicast, as a one-to-multiple-point communication, is one of the effecti

CCNP Study Notes 2-routing part-VPNReview the dynamic protocol: rip vpn ospf encapsulation UDP 520 IP 88 IP 89 update address 224.0.0.9 224.0.0.10 224.0.0.5/6 use passive to implement intercommunication between the two ends of unicast neighbor and the output interface to implement unicast NBMA point to multicast unicast key complete neighbor update methods, timing 30 seconds 15% offset, trigger incremental

= recvfrom(sockfd, recvline, MAXLINE, 0, preply_addr, len); if (n Iv. Multicasting 1. multicast address 1). IPv4 multicast address, IPv6 multicast address, and IPv6 multicast address Class D addresses in IPv4 (from 224.0.0.0 to 239.255.255.255) are multicast

Here's how to start our multicast programming: First, the concept of multicast Multicast, also known as "multicast", the network of the same business type of host logically grouped, the data sent and received only in the same group, other hosts did not join this group can not send and receive the corresponding data.

Disadvantages of broadcasting: routed isolation, non-cross-network segments, wasted traffic, and hardware resourcesOSPF Build neighbor: Unicast: Too troublesome broadcast: wasting resource multicast: IGPBenefits of Multicast:1, the concept of the group2, send data reasonable use of bandwidth resources, reduce the sender's CPU resource consumption3, do not know the address of the recipient4. Real-time sexUDP

In a local area network, administrators often need to send a piece of information to a group of users. If the use of a one-to-one delivery method, although it is feasible, but too troublesome, there are often leakage, wrong hair. In order to solve this group communication problem more effectively, a kind of multicast technology (also commonly called multicast communication) is presented, which is based on I

The old version of the VPN system GETSHELL of wangshen (also affects multiple VPN manufacturers' devices, such as Wangyu Shenzhou, tianrongxin, Xi'an wangying, weishitong, Geda zhengyuan, American concave and convex, and ANIX in Germany) In the/admin/system/backup_action.php file if (isset($_REQUEST['cmd']))$cmd = $_REQUEST['cmd'];else$cmd = "NULL";$with_cert = 1;$pass = "";include_once "management/system.p

1. The following is an example of an Android phone, we click "Settings" to enter, as shown in the following figure. 2. There is a more or more network connection in the Setup interface, which has the following interface 3. After this enter the interface, we click on "VPN" to open the new interface click "+" increase, as shown in the following figure. 4. Then we enter the domain name of the Outland, such as image encryption 5. Now back to t