0.217 [NAS] UL 0064 EMM: Attach request
        Protocol discriminator = 0x7 (EPS Mobility Management)
        Security header = 0x0 (Plain NAS message, not security protected)
        Message type = 0x41 (Attach request)
        EPS attach type = 1 (EPS attach)
        NAS key set identifier:
          TSC = 0
          NAS key set identifier = 1
        Old GUTI or IMSI:
          MCC = 001
          MNC = 01 
          MME Group ID = 1
          MME Code = 1
          M-TMSI = 0x00001234
        UE network capability:
          Length = 2
          Data = e0 e0
        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
          PDN type = 3 (IPv4v6)
          Protocol configuration options:
            ext = 1
            configuration protocol = 0
            Protocol ID = 0x8021 (IPCP)
            Data = 01 00 00 10 81 06 00 00 00 00 83 06 00 00 00 00
            Protocol ID = 0x0001 (P-CSCF IPv6 Address Request)
            Data =
            Protocol ID = 0x0003 (DNS Server IPv6 Address Request)
            Data =
            Protocol ID = 0x000a (IP address allocation via NAS signalling)
            Data =
            Protocol ID = 0x000c (P-CSCF IPv4 Address Request)
            Data =
            Protocol ID = 0x000d (DNS Server IPv4 Address Request)
            Data =
        Last visited registered TAI:
          MCC = 001
          MNC = 01 
          TAC = 0x0001
        T3324 value:
          value = 10
          unit = 2 (decihours)
        T3412 extended value:
          value = 24
          unit = 0 (10 minutes)