网络编程原始套接字-阿里云

Linux网络编程之原始套接字-ping协议实现

1.概述 PING协议是用来检验本地主机与远程主机是否连接，发送的是ICMP ECHO_REQUEST包。普通的套接字是基于TCP或者是UDP的，无法发送ICMP包，所以必须用原始套接字来实现。PING协议的客户端类型值为 8，代码值为0，表示请求。而PING协议的响应端类型值为0，代码值也为0，表...

Linux网络编程：原始套接字的魔力【下】

可以接收链路层MAC帧的原始套接字前面我们介绍过了通过原始套接字socket(AF_INET, SOCK_RAW, protocol)我们可以直接实现自行构造整个IP报文，然后对其收发。提醒一点，在用这种方式构造原始IP报文时，第三个参数pro...

Python网络编程

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Linux网络编程：原始套接字的魔力【上】

基于原始套接字编程在开发面向连接的TCP和面向无连接的UDP程序时，我们所关心的核心问题在于数据收发层面，数据的传输特性由TCP或UDP来保证：也就是说，对于TCP或UDP的程序开发，焦点...

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