CDPSnarf - CDP Packet Sniffer
CDPSnarf if a network sniffer exclusively written to extract information from CDP packets. It provides all the information a “show cdp neighbors detail” command would return on a Cisco router and even more.
The application is written in C using the popular PCAP library.
Sample Output
Cisco AIR-AP1231G-E-K9 Access Point:
$ sudo ./cdpsnarf eth2
Waiting for a CDP packet…
[#0] Sniffed [...]
