[Translation] IP subnet division
Original article title: IP subnetting made easy
Address: http://articles.techrepublic.com.com/5100-10878_11-6089187.html
IP network engineers need to have a solid understanding of how IP subnet division works.
1. the first is the c \ command in sed. The difference between this command and S/XXX/xxxx/g is that C \ can replace all the rows found by the current sed with the specified text
For example, sed-I "/734/C \ hello" Install. Log, replace the entire
Ip command Manual (1)
SummaryIP is a powerful network configuration tool in the iproute2 software package. It can replace some traditionalNetwork management tools. For example, ifconfig and route. This manual will be divided into chapters to
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Antpower-Technical article
Introduction to three common IP packet sending tools
Lang Guojun, an ambitious member of
The binary uses only the numbers 0 and 1, where each number corresponds to one bit (bits). In general, we will use each 4-bit or 8-bit as a group, which is called half-byte (nibble) and Byte, respectively.We are interested in the binary value
#include "Csapp.h"/* This code converts IP addresses in dotted decimal form to hexadecimal numbers and outputs *///returns a String representing the integer int str2int (char *str) { //to notice the initialization of a variable int value=0; //
Frequently surfing the Internet may encounter such websites as http: // 3396081157, which is strange. Curiosity makes us unable to click them and find that it is a valid link that can be connected to other websites. Also, when browsing the deep
TCP/IP protocol family
1.1 Introduction
The TCP/IP protocol family consists of 5 layers: Physical layer, Data link layer, network layer, Transport layer and application layer. The first four layers correspond to the first four layers of the OSI
IP subnet addressing
All Hosts must support subnet addressing (rfc950 [mogulandpostel1985]). IThe P address is simply composed of a network number and a host number. Instead, the host number is divided into a sub-network number and a host number.The
This kind of website-http: // 3427256388-is often used for surfing the Internet, which is strange. Curiosity makes us unable to click them and find that it is a valid link, can be connected to other websites. Also, when browsing the deep Directory
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