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Merge remote-tracking branch 'origin/update-doc-wireshark' into integration_2024_w25

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Raphael Defosseux
2024-06-21 09:31:22 +02:00
parent 4639458f22 dbc84d91fc
commit 2de46b9e79
1 changed files with 31 additions and 25 deletions
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common/utils/T/DOC/T/wireshark.md
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@@ -99,46 +99,52 @@ Use a recent version of wireshark. The steps below were done using
version 3.3.2. Maybe some options are different for your version version 3.3.2. Maybe some options are different for your version
of wireshark. Adapt as necessary. of wireshark. Adapt as necessary.
First, do the previous steps for LTE. 1) First, do the previous steps for LTE.
2) Then, in the menu, choose `Edit->Preferences`.
3) In the preference window, unroll `Protocols` and configure the following:
Then, in the menu, choose `Edit->Preferences`. **MAC**
In the preference window, unroll `Protocols`. Go to `MAC-NR`. Select:
Go to `MAC-NR`. Select both options (`Attempt to decode BCCH, PCCH and CCCH data using NR RRC dissector` * `Attempt to decode BCCH, PCCH and CCCH data using NR RRC dissector`
and `Attempt to dissect LCID 1-3 as srb1-3`). * `Attempt to dissect LCID 1-3 as srb1-3`
For `Source of LCID -> drb channel settings` choose option `From static table`. For `Source of LCID -> drb channel settings`:
Then click the `Edit...` button of `LCID -> DRB Mappings Table`. * choose option `From static table`.
* click the `Edit...` button of `LCID -> DRB Mappings Table`.
In the new window, click on `+`. Choose LCID `4`, DRBID `1`, UL RLC Bearer * In the new window, click on `+`. Choose LCID `4`, DRBID `1`, UL RLC Bearer
Type `AM, SN Len=18`, same thing for DL RLC Bearer Type. Type `AM, SN Len=18`, same thing for DL RLC Bearer Type.
* Click OK.
Then click OK. **RLC**
Now, go to `RLC-NR`. Select `Call PDCP dissector for SRB PDUs`. Now, go to `RLC-NR`. Select:
For `Call PDCP dissector for UL DRB PDUs` choose `18-bit SN`. Same * `Call PDCP dissector for SRB PDUs`.
for DL. * `Call PDCP dissector for UL DRB PDUs` choose `18-bit SN`. Same for DL.
* `Call RRC dissector for CCCH PDUs`.
Select `Call RRC dissector for CCCH PDUs`. * `Try to reassemble AM frames`.
You don't need to select `May see RLC headers only` and You don't need to select `May see RLC headers only` and
`Try to reassemble UM frames`. `Try to reassemble UM frames`.
Now, go to `PDCP-NR`. Select what you want in there. It's good **PDCP**
to select `Show uncompressed User-Plane data as IP`. Also good
to select `Show unciphered Signalling-Plane data as RRC`. Now, go to `PDCP-NR`. Select what you need in there.
For `Do sequence number analysis` it can be good to use
`Only-RLC-frames` but anything will do. We don't use ROHC so you It's good to select:
don't need to select `Attempt to decode ROHC data`. And the * `Show uncompressed User-Plane data as IP`
layer info to show depends on what you want to analyse. * `Show unciphered Signalling-Plane data as RRC`.
`Traffic Info` is a good choice. * `Only-RLC-frames` in `Do sequence number analysis`, but anything will do.
* `Traffic Info` as layer info to show, depending on what you want to analyse.
We don't use ROHC so you don't need to select `Attempt to decode ROHC data`.
You are done with the preferences. You can click OK. You are done with the preferences. You can click OK.
Then, in the menu `Analyze`, choose `Enabled Protocols...`. In the new window 4) Then, in the menu `Analyze`, choose `Enabled Protocols...`.
search for `nr` and select `mac_nr_udp` to have `MAC-NR over UDP`. 5) In the new window search for `nr` and select `mac_nr_udp` to have `MAC-NR over UDP`.
And that's it. Maybe other settings can be changed, but those steps should be And that's it. Maybe other settings can be changed, but those steps should be
enough for a start. enough for a start.