最近工作中遇到某个服务器应用程序 UDP 丢包，在排查过程中查阅了很多资料，我在排查过程中基本都是通过使用 tcpdump 在出现问题的各个环节上进行抓包、分析在那个环节出现问题、针对性去排查解决问题，对症下药，最后终究能够解决问题。但是这种情况 ...

Sendip 是一个Linux平台的命令行网络发包工具，目前支持的协议有IPv4、TCP、BGP、ICMP、UDP、RIP、NTP、IPv6、ICMPv6、RIPng。Sendip 功能很强大，它支持自定义报文头部和数据(即任意的IP数据包)，连源IP都可以随意写，而且里面也提供了一些默认的选项，可以按需构造 ...

As everyone know that TCP (Transmission Control Protocol) and UDP (User Datagram Protocol) are internet protocols which are used for communication through internet. The communication takes places ...

[Danman] was looking for a way to get the HDMI output from a camera to a PC so it could be streamed over the Internet. This is a task usually done with HDMI capture cards, either PCI or even more ...

I have this scenario where the MAC address table in my switch ages out MAC addresses of devices that it hasn't heard from after 5 minutes. I could extend this time, but the scenario also requires that ...

In the last issue we started following a packet's journey from the wire up to the higher levels of network stack processing. We left the packet at the end of layer 3 processing, where IP has ...

Have you ever performed surgery on data packets? There are times when that may be the best way to troubleshoot and optimize your network. This edition of the Packet Professor will get you started in ...

All too often we shy away from the depths of IP protocols, leaving the application vendors such as Microsoft; Wowza Media Systems, LLC; RealNetworks, Inc.; Adobe Systems, Inc.; and others with more ...

F5 Labs has detected a WireX variant capable of launching UDP flood DDoS attacks. The WireX botnet presented defenders with many superlatives: the largest mobile botnet ever; hundreds of mobile apps ...

In action movies, when the hero has only minutes before the readout on the bomb counts down to zero, with many miles to drive through a congested city in order to get there in time, he'll just ignore ...