$ sudo apt-get install cdpr
$ sudo cdpr [sudo] password for neo: cdpr - Cisco Discovery Protocol Reporter Version 2.4 Copyright (c) 2002-2010 - MonkeyMental.com 1. eth0 (No description available) 2. tun0 (No description available) 3. usbmon1 (USB bus number 1) 4. usbmon2 (USB bus number 2) 5. usbmon3 (USB bus number 3) 6. usbmon4 (USB bus number 4) 7. usbmon5 (USB bus number 5) 8. lo (No description available) Enter the interface number (1-8):1 Using Device: eth0 Waiting for CDP advertisement: (default config is to transmit CDP packets every 60 seconds) Device ID value: 4A3750G Addresses value: 193.168.0.254 Port ID value: GigabitEthernet1/0/15
通过cdprs.php收集CDP数据，很容易改写，实现写入数据库
/usr/share/doc/cdpr/examples/
$ find /usr/share/doc/cdpr/examples/ /usr/share/doc/cdpr/examples/ /usr/share/doc/cdpr/examples/cdprs /usr/share/doc/cdpr/examples/cdprs/cdprs.cgi.gz /usr/share/doc/cdpr/examples/cdprs/cdprs.php /usr/share/doc/cdpr/examples/cdpr.conf
这个功能可以实现后自动绘制网络拓扑，分析收集的数据，然后通过Graphviz绘制网络拓扑图。
原文出处：Netkiller 系列 手札
本文作者：陈景峯
转载请与作者联系，同时请务必标明文章原始出处和作者信息及本声明。
