Wireshark trace show protocol SMPP protocol and "outbind" as info

asked 2022-08-21 22:16:19 +0000

alwalker133517
1

In a few of my traces i am seeing packets with protocol type "SMPP" and the info sections says "outbind"

Anyone have and idea what "outbind" is trying to tell me.

answered 2022-08-21 23:55:26 +0000

Chuckc
2858 ●5 ●567 ●19

updated 2022-08-21 23:56:24 +0000

The dissector (packet-smpp.c) references

Dissector of an SMPP (Short Message Peer to Peer) PDU, as defined by the SMS forum (www.smsforum.net) in "SMPP protocol specification v3.4" (document version: 12-Oct-1999 Issue 1.2)

Short Message Peer to Peer Protocol Specification v3.4

2.2.1 Outbind

The purpose of the outbind operation is ...

Best to look at the spec which includes a flow diagram.

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Wireshark trace show protocol SMPP protocol and "outbind" as info