当前位置:网站首页>What is the difference between gateway address and IP address in tcp/ip protocol?
What is the difference between gateway address and IP address in tcp/ip protocol?
2022-07-06 03:59:00 【yanwu_ nuc】
Reference article
Reference article
difference :IP Address means Internet protocol address , yes IP A uniform address format provided by the protocol , It assigns a logical address to every network and host on the Internet ; The gateway is a network connected to another network “ Gateway ”, In essence, it is a network that leads to other networks IP Address , This is it ip Internet access exit of address .
If you don't understand, please see below
gateway IP Address and IP The difference in address
gateway , Everybody knows , From one room to another , It must pass through a door . Again , Send messages from one network to another , You have to go through one “ Gateway ”, This gateway is the gateway . seeing the name of a thing one thinks of its function , gateway (Gateway) It's when one network connects to another “ Gateway ”.
According to different classification standards , There are also many kinds of gateways .TCP/IP The gateway in the protocol is the most commonly used , What we're talking about here is “ gateway ” Mean TCP/IP Gateway under the protocol . So what is a gateway ?
Gateway is essentially a network to other networks IP Address .
Like the Internet A And the Internet B,
The Internet A Of IP Address range is “192.168.1.1~192. 168.1.254”, The subnet mask is 255.255.255.0;
The Internet B Of IP Address range is “192.168.2.1~192.168.2.254”, The subnet mask is 255.255.255.0.
Without a router , There's no way between two networks TCP/IP communication , Even if two networks are connected to the same switch ( Or hubs ) On ,TCP/IP The protocol will also be based on the subnet mask (255.255.255.0) Determine that the hosts in two networks are in different networks . and To achieve communication between the two networks , You have to go through the gateway . If the Internet A The host in found that the destination host of the packet is not in the local network , Just forward the packet to its own gateway , And then the gateway forwards it to the network B Gateway for , The Internet B And then forward it to the network B Some host of . The Internet B To the Internet A The process of forwarding packets . So , Only with the gateway set up IP Address ,TCP/IP Protocol can realize the communication between different networks . So this IP What machine's address is IP The address? ?
The relationship between gateway and router : The gateway IP Address is a device with routing function IP Address , Devices with routing capabilities have routers 、 Server with routing protocol enabled ( It's essentially a router )、 proxy server ( It's also like a router ).
Router (Router): Used to connect multiple logically separate networks , It's a network device responsible for pathfinding , Provide the best communication path for users
Router function : Use the routing table to select the path for data transmission , The routing table contains a list of network addresses and the distances between them , Router Use the routing table to find the correct path of the packet from the current location to the destination address .
ip The relationship between address and gateway : Gateway generally refers to the address of the router ,IP The address is the address of the computer on the network .ip The relationship between address and gateway is : The gateway address is automatically divided into multiple through the router IP Address ; The gateway address is always the same as that of your computer IP The address is of the same network segment .
The default gateway , The exit selected by default for the packet ! Usually your router address .
What is? IP Address ? So-called IP The address is given to each connection at Internet One assigned by the host on 32bit Address . according to TCP/IP(Transport Control Protocol/Internet Protocol, Transmission control protocol /Internet agreement ) Provisions of the agreement ,IP The address is expressed in binary , Every IP Long address 32bit, Bits are converted into bytes , Namely 4 Bytes . For example, a binary form IP The address is “00001010000000000000000000000001”, Such a long address , It's hard for people to deal with it . For the convenience of people ,IP Addresses are often written in decimal form , Use the symbol in the middle “.” Separate different bytes . therefore , above IP The address can be expressed as “10.0.0.1”.IP This representation of address is called “ Dotted decimal notation ”, It's obviously better than 1 and 0 It's much easier to remember . Some people would think that , A computer can only have one IP Address , This view is wrong . We can specify that a computer has multiple IP Address , So when accessing the Internet , Don't think of one IP An address is a computer ; in addition , Through specific technology , Multiple servers can also share one IP Address , These servers look like a host to users .
stay win Operating system ,win+r open “ function ” window , Input “cmd”, open cmd Command window ; stay cmd Window input command :" ipconfigl" enter , You can see the settings of your computer IP And gateway
边栏推荐
- Cf464e the classic problem [shortest path, chairman tree]
- BUAA calculator (expression calculation - expression tree implementation)
- Determine which week of the month the day is
- Facebook等大廠超十億用戶數據遭泄露,早該關注DID了
- Codeforces Global Round 19
- 【按键消抖】基于FPGA的按键消抖模块开发
- mysql从一个连续时间段的表中读取缺少数据
- MySql数据库root账户无法远程登陆解决办法
- WPF效果第一百九十一篇之框选ListBox
- 【FPGA教程案例12】基于vivado核的复数乘法器设计与实现
猜你喜欢
JVM的手术刀式剖析——一文带你窥探JVM的秘密
User experience index system
[Key shake elimination] development of key shake elimination module based on FPGA
Scalpel like analysis of JVM -- this article takes you to peek into the secrets of JVM
[meisai] meisai thesis reference template
User datagram protocol UDP
Multi project programming minimalist use case
Développement d'un module d'élimination des bavardages à clé basé sur la FPGA
MySql数据库root账户无法远程登陆解决办法
The ECU of 21 Audi q5l 45tfsi brushes is upgraded to master special adjustment, and the horsepower is safely and stably increased to 305 horsepower
随机推荐
Prime Protocol宣布在Moonbeam上的跨链互连应用程序
C#(二十九)之C#listBox checkedlistbox imagelist
User perceived monitoring experience
[matlab] - draw a five-star red flag
自动化测试的好处
Mapping between QoE and KQI
DM8 archive log file manual switching
Facebook等大廠超十億用戶數據遭泄露,早該關注DID了
Facebook and other large companies have leaked more than one billion user data, and it is time to pay attention to did
Hashcode and equals
Stc8h development (XII): I2C drive AT24C08, at24c32 series EEPROM storage
自动化测试怎么规范部署?
P7735-[noi2021] heavy and heavy edges [tree chain dissection, line segment tree]
[analysis of variance] single factor analysis and multi factor analysis
Multi project programming minimalist use case
How can programmers resist the "three poisons" of "greed, anger and ignorance"?
pd. to_ numeric
Take you to wechat applet development in 3 minutes
asp. Core is compatible with both JWT authentication and cookies authentication
User datagram protocol UDP