Closed M0hanrajp closed 6 months ago
https://github.com/fgsect/scat/issues/26
As discussed in this closed issue. Current code doesn't support outputting 5G NR to PCAP. There are issues with displaying the data in wireshark until GSMTAPv3 is released
Thanks @shark-fi, for providing the information regarding NR PCAP.
Is it the same problem with LTE mib packet ? I'm not able to see LTE mib packet too.
Yup, for NR RRC/NAS, as GSMTAP is not yet ready so the PDUs are printed to the stdout in this moment. Grab https://github.com/peremen/3GPPDecoder/ to manually decode this.
For LTE MIB packet, they are usually not carried through 0xB0C0 log message as other LTE RRC messages, hence it is calculated from the parse_lte_ml1_cell_info
. If the version of LTE ML1 Cell Info log item is not supported, or your .qmdl does not have that log, then you won't get the MIB. This is the limitation of Qualcomm's side.
@peremen
Thanks for all your help!.
Please note that I have built 3GPP decoder from your repository as a windows executable. let me\ know if you would want me to upload the folder so that everyone can use the application.
Thanks.
Also one last question ! Can we observe IMS SIP packets in .pcap ?
Edit, now I' able to see sip logs:
[ Issue ] After converting .qmdl2 file into .pcap file, pcap file does not show NR RRC OTA message packet. Please note that there was no LTE mib packet captured.
[ Description ]
Expected results pcap file should indicate LTE mib packets and NR RRC OTA packets.
Please note while converting the .qmdl2 file we can see the below logs:
Below is the partial snippet of NR logs during conversion of .qmdl2 to .pcap
Full parsing logs during the conversion of .qmdl2 to .pcap
Output - in Pcap only LTE RRC, UMTS RRC, GERAN RRC are indicated
Please let me know if anything is needed from my side, Thanks