However, if you know the UDP port or Ethernet type used (see above), you can filter on that one. You cannot directly filter PTP protocols while capturing. Show only the PTP based traffic: ptp Capture Filter SampleCaptures/ptpv2_anon.pcapng ptpv2.pcap modified with TraceWrangler to use non-standard ports (42319,42320)Ī complete list of PTP display filter fields can be found in the display filter reference As long as we are in position to capture network traffic, Wireshark can sniff the passwords going through. SampleCaptures/ptpv2.pcap some PTP version 2 packets Well, the answer is definitely yes Wireshark can capture not only passwords, but any kind of information passing through the network usernames, email addresses, personal information, pictures, videos, anything. 'Make the PTP dissector analyze PTP messages. 'analyze_ptp_messages', 'Analyze PTP messages',.UDP port(s)/range(s) to decode as PTP (Default: 319-320)įuture release - not in current 3.6.1 version The PTP dissector seems to work properly.

The well known Ethernet type for PTP traffic is 0x88F7 PTP can use Ethernet as its transport protocol. The well known UDP ports for PTP traffic are 319 (Event Message) and 320 (General Message).Įthernet: Starting with IEEE1588 Version2, a native Layer2 Ethernet implementation was designed. UDP: Typically, PTP uses UDP as its transport protocol (although other transport protocols are possible). However, PTP is mainly used in LANs, with much higher precision than NTP (usually 10's of microseconds to 10's of nanoseconds).

PTP is used to synchronize the clock of a network client with a server (similar to NTP).

Wireshark pcap filter on port