how to ip subnetting

http://zhangxugg-163-com.iteye.com/blog/1669810 If a host is bound to have multiple IP addresses, then in the passive response and active initiating connection two ways, the source IP address selection mechanism is certainly different. When the host receives the external packet and sends the response packet, the response source address is clearly the address of the client request, which is very easy to un

Class d ip addresses (224.0.0.0 to 239.255.255.255) do not recognize a single interface on the Internet, but recognize an interface group, which is called multicast groups. Members of a single network use the IGMP protocol to communicate with each other. Multicast Routing Protocol for multicast routers, such as dvmrp (Distance Vector Multicast Routing Protocol, Distance Vector multicast routing selection protocol) transmits member information. In net/

Gateway, we all know, from one room to another room, must go through a door. Similarly, sending a message from one network to another must pass through a "gateway", which is gateways. The gateway, as its name suggests, is a "gateway" to a network connected to another network. According to different classification criteria, there are many kinds of gateways. The gateway in the TCP/IP protocol is the most commonly used, where we speak of "gateways" that

an overview The IP protocol is the most central protocol in the TCP/IP protocol cluster, and all TCP, UDP, ICMP, and IGMP data are transmitted in an IP datagram format. The IP protocol provides unreliable, non-connected data transfer services. Unreliable means that it does not guarantee that the

This chapter describes the structure and basic IP processing processes of an IP group, including input, forwarding, and output. Shows the common organization form of the IP layer. In the previous article, we saw how the network interface put the IP Group to the IP Input Que

The method of dividing subnets is to borrow several bits from the host number of the network as the subnet number, and the host number correspondingly reduces the same number of bits. Before subnetting, the IP address is a level two structure: network number, host number.After dividing the subnet, level two IP address becomes level three

The network IP address "main" is divided into three categories of ABC, the following is the scope of coverage: Class A: 0.0.0.0-127.255.255.255, whose subnet mask is 255.0.0.0 (another way to annotate by subnet mask is/8, which is to convert the subnet mask to binary, from left to 8 1) Class B: 128.0.0.0-191.255.255.255, whose subnet mask is 255.255.0.0 (another way to annotate by subnet mask is/16, which is to convert the subnet mask to binary, fro

China's IP routers have developed rapidly and their technology is also very mature. Many people may not understand the connection between IP Routers and SDH devices of the IP transport network, after reading this article, you must have gained a lot. I hope this article will teach you more things. In recent years, the broadband high-speed Internet, with the

How to set the IP address of CentOS, Linux How to modify IP address 1 2 3 4 5 6 7 Step through ReadingBaidu Experience: jingyan.baidu.comFor many friends who have just come into contact with Linux, how to set the IP address of the Linux system, as the first step, the following small series of CentOS system as an example, to s

First, let's talk. Docker's network mode: When we use Docker run to create a container, we can use the--net option to specify the network mode of the container, with Docker having a total of 4 network modes: 1:bridge mode,--net=bridge (default). This is the default setting for the Dokcer network. After installing Docker, the system automatically adds a bridge Docker0 for Docker to use, and when we create a new container, the container obtains an IP ad

When it comes to IP protocols, you must first say the two features of the IP protocol:(i) unreliability (unreliable)Unreliability means that it does not guarantee that the IP datagram can successfully reach the destination, IP can only do to provide the best transport services, IP