MTP2 User Peer-to-Peer Adaptation Layer (M2PA)
It should not be confused with M2UA which serves a similar purpose.
XXX - add a brief description of M2PA history
XXX - Add example decoded traffic for this protocol here (as plain text or Wireshark screenshot).
The M2PA dissector is fully functional. It currently states that it decodes only up to Internet Draft-12 but it works just fine with implementations conforming to the RFC version. (If there are really no differences between Draft-12 and the RFC the dissector should be updated to indicate that it supports the RFC version.)
The M2PA dissector is able to decode the following versions of the M2PA protocol, based on the dissector's preference setting:
- Internet-Draft 2
- Internet-Draft 8
- Internet-Draft 12 (compatible with RFC?)
Example capture file
SampleCaptures/japan_tcap_over_m2pa.pcap This capture file contains TCAP over Japan SCCP and MTP3 over (RFC version) M2PA.
A complete list of PROTO display filter fields can be found in the display filter reference
Show only the PROTO based traffic:
You cannot directly filter for M2PA while capturing. However, if you know the SCTP port used (see above), you can filter on that.
Capture only the M2PA traffic over the default port (3565):
sctp port 3565
RFC 4165 MTP2 Peer-to-Peer Adaptation Layer (M2PA) - This is the RFC that defines M2PA.