multicast vpn

The role of network layer and Internet multicast 1. Briefly describe the role of the OSI physical layer, data link layer, and network layer? Network Layer: provides the most suitable path for packets or groups through the Communication Subnet through the routing selection protocol (Routing Algorithm). Data Link Layer: various control protocols are used to convert erroneous physical channels into error-free data frames that can be reliably transmitted.

Windows NLB (Network Load Balancing) is a load balancing technology that Windows $ Server begins to provide on the operating system. NLB uses a distribution algorithm to distribute load balancing across multiple hosts, increasing the scalability and availability of key IP-based services such as the WEB, virtual private networks, streaming media, Terminal Services, proxies, and so on, while detecting host failures and automatically reallocating traffic to other operations masters. Thus providing

Inside the Ethernet there will be broadcast and multicast. Both of these packages are an STA contracted to multiple Sta.Broadcast and multicast between LAN ports are reliably forwarded when there is no wifi, but it is not the same if WiFi is present.Power considerationsAccording to the Protocol, broadcast and multicast are sent to STA at Dtim. The Dtim in the AP

A python script that can send multicast data on LINUX. In fact, it is not too difficult to compile. The specific code is as follows: first declare that this is not what I wrote, but what I found, but what others wrote is quite good. The code is as follows: # UDP multicast examples, Hugo Vincent, 2005-05-14.Import socketDef send (data, port = 50000, addr = '192.1.100 '):"Send (data [, port [, addr])-multi

memory leak:Calling the DeleteObject in the API[System.Runtime.InteropServices.DllImport ("gdi32.dll")] bool DeleteObject (INTPTR hobject );PrivateBitmapSource Copyscreen () {var handle =IntPtr.Zero; BitmapSource Source =Null;Try{var bitmap =New Bitmap ((intintvar g = Graphics.fromimage (bitmap); G.copyfromscreen ( Span style= "color: #800080;" >0, 0, 0, 0, bitmap. Size); Handle = bitmap. Gethbitmap (); SOURCE = Imaging.createbitmapsourcefromhbitmap (handle, IntPtr.Zero, Int32rect.empty,

is in the form of IP multicast rams that contain PPPPackets, referred to as encapsulated PPP packets. The second call creates the Virtual Private Networking (VPN) connection to a PPTP server on the private enterprise LAN, this is referred to asTunnel. This is shown in the following figure: Figure1 1. The client first connects to the ISP through the first PPP dialing to ensure Internet access. 2. After you

-secrets fileVi/etc/ppp/chap-secretsThe content is as follows:# Secrets for authentication using CHAP# Client server secret IP addressesVPN username vpn connection name (custom) "VPN password "*3. copy commandsCp/usr/share/doc/ppp-2.4.4/scripts/pon/usr/sbin/Cp/usr/share/doc/ppp-2.4.4/scripts/poff/usr/sbin/Chmod + x/usr/sbin/pon/usr/sbin/poff4. dial vpnPon vpn con

This article describes in detail the implementation of the Sparse Mode of multicast routing, mainly from the discovery of RP, the establishment process of the shared tree and source registration, the conversion from the shared tree to the source tree is described in detail. I. RP discovery RP discovery mechanism: Several routers are configured as alternative RP, and the alternative RP sends an interface containing its own campaign, which is generally

Mnc-multicast NetCatUsing NC to test UDP multicast, always encounter strange problems, engage in confused. The MNC was discovered by chance, and the test was really useful.：Https://github.com/marascio/mnc Mnc-multicast NetCat------------------------1. INTRODUCTIONMNC is a simple, one-direction-at-a-time, "Netcat"-like application Usingmulticast. The aim is to p

There are three communication modes in the current network: unicast, broadcast, and multicast. Among them, multicast occurs at the latest time, but it also has the advantages of unicast and broadcast, and has the most promising future. I. unicast: Between Hosts "One-to-one"In the communication mode, vswitches and vrouters in the network only forward data without copying. If 10 clients need the same data, th

To do useful work, P2P applications must be able to discover and interact with each other. This article provides an implementation of IP multicast-based discovery.Before a software entity can participate in direct peer-to-peer interaction with P2P applications, the entity must discover the appropriate peer-to-peer points to interact. All feasible P2P architectures provide a solution for problem discovery. In this article, I will describe the implement

Turn from: http://run.bloghome.cn/posts/99860.html There are three kinds of communication modes in the current network: unicast, broadcast, multicast, in which the multicast time is the most late, but also has the advantages of unicast and broadcast, the most promising development. 1. Unicast: A one-to-one communication mode between hosts, where switches and routers on the network only forward and not rep

Http://91mail.51.net supply Currently, companies with relatively large scales all have their own subsidiaries. How to keep the branches safe, efficient, low-cost, and multi-purpose connections with the company's headquarters at any time is a challenge facing every enterprise. Traditional methods include leased line connection, dial-up connection, and direct access to IP addresses. However, they are either expensive or have a single function, which may pose security risks. Using a

Concepts of unicast, multicast, broadcast, and anycast UnicastIt refers to the unicast method in which the destination address is a single objective in the computing machine's website. It is the most widely used network today. Generally, most of the network recommendations or services used use unicast Protocol, for example, all TCP-based protocol. [Unicast features] Each time only two instances communicate with each other, the sender and accept

First, I declare that this is not what I wrote, but what I found, but what others wrote is quite good. Copy codeThe Code is as follows: # UDP multicast examples, Hugo Vincent, 2005-05-14. Import socket Def send (data, port = 50000, addr = '192.1.100 '):"Send (data [, port [, addr])-multicasts a UDP datax ."""# Create the socketS = socket. socket (socket. AF_INET, socket. SOCK_DGRAM)# Make the socket multicast