在Windows 2000下使用winsock2修改IP报头的例子

P2P之UDP穿透NAT的原理与实现源代码，有VC实现的网络编程-P2P UDP penetrate NAT Zhi Theory and implementation of the source code, the VC Network Programming

1-持续CSMA协议下，当一个用户要发送数据时，它首先侦听信道，看是否有其他站点在传送。如果信道忙，就持续等待直到信道空闲时，便将数据送出。若发生冲突，就等待一个随机长的时间，然后重新侦听。 对于这种协议，先考虑当前帧i时的前一帧时i-1，得到前一帧时的最后一帧frame0（相对时间最大的帧）的相对时间dt0，然后再在当前帧时查看有哪些帧的相对时间会小于dt0，这些帧若是发送就会与frame0发生冲突，所以这些帧就进入持续等待状态，这些帧并没有发送。再考虑当前帧余下的帧（dt > dt0），它们中的第一帧侦听到信道处于空闲状态，所以就发送，而其他的帧由于第一帧的发送又处于等待状态。若有大于或等于2个帧的相对时间相等，且它们又同时侦听到信道空闲时，就会同时发送而导致冲突，冲突发生后的处理方法同上两个协议的一样。 -1- CSMA continued under the agreement, when a user to send data, it first interception Channel to see if there are other sites in transmission. If Channel busy, continuing to wait until the idle channel, and put more information out. If there is conflict, it is a long wait for a random time, then re-interception. Such agreements, to consider the current frame i am one of the former when i-1, be a time before the final one frame0 (relative to the time frame) the relative dt0 time, and then when the current frame to detect what the relative time frame will be less than dt0, these frames will be sent if and frame0 conflict, th

几只游动的金鱼和网页页面经常碰见的小水滴,很漂亮哦,供初学者参考-handful of goldfish swimming and Web pages often met with a small drop of water, and very pretty, oh reference for beginners

通过客户端和服务器的连接实现通话，数据查询，中英文对照查询-Through the client and server connections realize calls, data inquiries, in bilingual query

Computer Networking--A multithreaded Web server

自动打开指定的网址，同时打开多个，如果有兴趣你不妨-automatically open the designated site, opened at the same time many, if you are interested to take a look

用VB做的网站 把服务器和网页集成在一起了 值得学习哦-Using VB to do the website and web server integrated together to learn Oh

我只写了前4个,这个是别人的程序,我觉得写的很好,就传了上来,是FTP扫描的工具,扫描别人21端口,试能否匿名连接-I just write the first four, the other is the process, I think was a very good on-the ranks of the FTP scanning tools, scanning port 21 others, whether anonymous connections trial

一个IP多播的例子-An example of IP Multicast

简单的聊天软件，基于TCP/IP协议，使用MFC CSocket类编写，分为客户端和服务器端两部分，适合初学者学习