Software Version: Cisco Internetwork Operating System Software 11 = Frame type: Unnumbered frame (0x03) Time since reference or first frame: 0.000000000 seconds

Time delta from previous packet: 0.000000000 seconds $ sudo tshark -i eth0 -V -f 'ether host 01:00:0c cc:cc' -c 2įrame 1 (386 bytes on wire, 386 bytes captured) XXX - Add example traffic here (as plain text or Wireshark screenshot). PPP: CDP is encapsulated over PPP with a protocol type of 0x0207. LLC/ SNAP: CDP is encapsulated as LLC/SNAP with an OUI of 0x00000C and a protocol ID of 0x2000.Ĭisco HDLC: CDP is encapsulated over Cisco HDLC with a protocol type of 0x2000. XXX - add a brief description of CDP history (see third external link for a detailed history) Protocol dependencies The purpose of the protocol is to supply a network entity with information about its direct connected neighbors. CDP (Cisco Discovery Protocol) is a Cisco proprietary protocol that runs between direct connected network entities (routers, switches, remote access devices, IP telephones etc.).

Wireshark display filter ttl