MSG #25 2021-12-17 08:41:05.253
NAS

     EMM: Attach request
    Protocol discriminator = 0x7 (EPS Mobility Management)
    Security header = 0x1 (Integrity protected)
    Auth code = 0x3cc6a191
    Sequence number = 0x0e
    Protocol discriminator = 0x7 (EPS Mobility Management)
    Security header = 0x0 (Plain NAS message, not security protected)
    Message type = 0x41 (Attach request)
    EPS attach type = 2 (combined EPS/IMSI attach)
    NAS key set identifier:
      TSC = 0
      NAS key set identifier = 0
    Old GUTI or IMSI:
      MCC = 001
      MNC = 01
      MME Group ID = 32769
      MME Code = 1
      M-TMSI = 0xb57424e5
    UE network capability:
      0xf0 (EEA0=1, 128-EEA1=1, 128-EEA2=1, 128-EEA3=1, EEA4=0, EEA5=0, EEA6=0, EEA7=0)
      0x70 (EIA0=0, 128-EIA1=1, 128-EIA2=1, 128-EIA3=1, EIA4=0, EIA5=0, EIA6=0, EIA7=0)
      0xc0 (UEA0=1, UEA1=1, UEA2=0, UEA3=0, UEA4=0, UEA5=0, UEA6=0, UEA7=0)
      0x40 (UCS2=0, UIA1=1, UIA2=0, UIA3=0, UIA4=0, UIA5=0, UIA6=0, UIA7=0)
      0x19 (ProSe-dd=0, ProSe=0, H.245-ASH=0, ACC-CSFB=1, LPP=1, LCS=0, 1xSRVCC=0, NF=1)
    ESM message container:
      Protocol discriminator = 0x2 (EPS Session Management)
      EPS bearer identity = 0
      Procedure transaction identity = 1
      Message type = 0xd0 (PDN connectivity request)
      Request type = 1 (initial request)
      PDN type = 3 (IPv4v6)
      ESM information transfer flag = 1
    Last visited registered TAI:
      MCC = 001
      MNC = 01
      TAC = 0x0001
    DRX parameter:
      Data = 0a 00
    MS network capability:
      Length = 3
      Data = e5 e0 3e
    Old location area identification:
      MCC = 001
      MNC = 01
      LAC = 0x0001
    Mobile station classmark 2:
      Length = 3
      Data = 57 58 a6
    Mobile station classmark 3:
      Length = 12
      Data = 60 14 04 e2 91 81 0f 12 1e 50 00 00
    Supported codecs:
      Length = 8
      Data = 04 02 60 04 00 02 1f 02
    Voice domain preference and UE's usage setting = 0x03 (IMS PS voice preferred, CS Voice as secondary, Voice centric)
    Old GUTI type = 0
    MS network feature support = 0x01 (MS supports the extended periodic timer in this domain)
    TMSI based NRI container:
      Length = 2
      Data = 48 c0