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MMS protocol is captured

asked 2020-08-05 17:57:52 +0000

I am using the latest Wireshark downloaded from site. I am able to capture goose protocol but not MMS protocol. IEC61850 commands are not captured. I have also done changes in PRES after searching in internet to capture IEC61850 and MMS but it’s not working. Please suggest a solution.

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answered 2021-07-02 06:32:16 +0000

jesp gravatar image

To capture MMS protocol, this context ID must be set :

  • Edit -> Preferences -> Protocols -> PRES -> Users Context List
    • Context Id = 3
    • Syntax name OID = 1.0.9506.2.1

MMS decoding is activated only for the standard port 102.

If you want to decode frames on another port, you can right-click on a decodable frame, select Decode As and then select the protocol TPKT. This protocol is at the level just above TCP and, once selected, it enables decoding of all other layers, up to MMS layer.

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Asked: 2020-08-05 17:57:52 +0000

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Last updated: Aug 05 '20