• ********* Replay this GPRS Gb trace sample with Linkbit Simulation Studio *********
  • 06:11:40.880 Tx1-16 Off NS-UNITDATA.DL-UNITDATA.UI.AUTHENTICATION AND CIPHERING REQUEST [GMM/SM] 
    • 04 F1 00 00 01 2B 00 81 01 FC 1B 00 00 21 16 82 03 E8 13 88 13 33 82 2A 09 89 28 00 0D 88 29 05
20 56 05 25 98 87 0E 9C 41 C0 01 08 12 01 20 21 D2 17 19 7F 1B B0 31 64 4F 72 5A 09 16 1A 69 3A
81 C2 B0 D2
      POS
      		BINARY
      		NAME
      		VALUE
      		LAPF Frame Relay.
      		Address.
      00
      		000001..
      .
                                
      		DLCI (upper)1.
      		......0.
      .
                                
      		C/R0.
      		.......0
      .
                                
      		EA00.
      01
      		1111....
      .
                                
      		DLCI (lower)15.
      		....0...
      .
                                
      		FECN0.
      		.....0..
      .
                                
      		BECN0.
      		......0.
      .
                                
      		DE0.
      		.......1
      .
                                
      		EA11.
      		Information.
      2-67
      .
                                
      		Information66 Octets (hex): 00 00 01 2B 00....
      		GSM Gb NS.
      02
      		00000000
      .
                                
      		PDU typeNS-UNITDATA (0).
      		NS SDU Control Bits.
      03
      		000000..
      .
                                
      		Spare0.
      		......0.
      .
                                
      		R-bit0 (No request for change flow).
      		.......0
      .
                                
      		C-bit0 (No confirmation for change flow).
      		BVCI.
      4-5
      .
                                
      		BVCI299.
      		NS SDU.
      6-67
      .
                                
      		NS SDU62 Octets (hex): 00 81 01 FC 1B....
      		GSM BSSGP.
      06
      		00000000
      .
                                
      		PDU typeDL-UNITDATA (0).
      7-10
      .
                                
      		TLLI (current)4 Octets (hex): 81 01 FC 1B.
      		QoS Profile.
      11-12
      .
                                
      		Peak bit rate provided by the network0.
      13
      		00......
      .
                                
      		Spare0.
      		..1.....
      .
                                
      		C/R1 (The SDU does not contain a LLC ACK or SACK command/response frame type).
      		...0....
      .
                                
      		T0 (The SDU contains signalling (e.g. related to GMM)).
      		....0...
      .
                                
      		A0 (Radio interface uses RLC/MAC ARQ functionality).
      		.....001
      .
                                
      		Precedence1 (Normal priority(DL-UNITDATA) / Radio priority 2(UL-UNITDATA)).
      		PDU Lifetime.
      14
      		00010110
      .
                                
      		Information Element IdentifierPDU Lifetime (22).
      15
      		10000010
      .
                                
      		Length indicator2.
      16-17
      .
                                
      		Delay Value1000.
      		MS Radio Access Capability.
      18
      		00010011
      .
                                
      		Information Element IdentifierMS Radio Access Capability (19).
      19
      		10001000
      .
                                
      		Length indicator8.
      20-27
      .
                                
      		MS Radio Access Capability8 Octets (hex): 13 33 82 2A 09....
      		IMSI.
      28
      		00001101
      .
                                
      		Information Element IdentifierIMSI (13).
      29
      		10001000
      .
                                
      		Length indicator8.
      30
      		.....001
      .
                                
      		Type of identity1 (IMSI).
      		....1...
      .
                                
      		Odd/even indicator1 (odd number of identity digits).
      30-37
      .
                                
      		Identity digit250026550528978.
      		LLC-PDU.
      38
      		00001110
      .
                                
      		Information Element IdentifierLLC-PDU (14).
      39
      		10011100
      .
                                
      		Length indicator28.
      40-67
      .
                                
      		LLC-PDU28 Octets (hex): 41 C0 01 08 12....
      		GSM Gb LLC.
      40
      		0.......
      .
                                
      		PD0 (LLC frame).
      		.1......
      .
                                
      		C/R1.
      		..00....
      .
                                
      		X0 (spare value).
      		....0001
      .
                                
      		SAPI1 (GPRS Mobility Management).
      41
      		110.....
      .
                                
      		FormatUI format (6).
      		...00...
      .
                                
      		X20 (spare value).
      41-42
      .
                                
      		N(U)0.
      42
      		......0.
      .
                                
      		E0 (frame sent without encryption).
      		.......1
      .
                                
      		PM1 (FCS covers the frame header and information fields).
      43-67
      .
                                
      		Information field25 Octets (hex): 08 12 01 20 21....
      		GSM Radio GMM/SM.
      43
      		....1000
      .
                                
      		Protocol discriminator8 (GPRS mobility management messages).
      		0000....
      .
                                
      		Skip indicator0.
      		Authentication and ciphering request message identity.
      44
      		00010010
      .
                                
      		Message typeAuthentication and ciphering request (18).
      		IMEISV request.
      45
      		0.......
      .
                                
      		Spare0.
      		.000....
      .
                                
      		IMEISV request valueIMEISV not requested (0).
      		Ciphering algorithm.
      		....0...
      .
                                
      		spare0.
      		.....001
      .
                                
      		Type of algorithmGPRS Encryption Algorithm GEA/1 (1).
      		A&C reference number.
      46
      		0010....
      .
                                
      		A&C reference number2.
      		Force to standby.
      		....0...
      .
                                
      		Spare0.
      		.....000
      .
                                
      		Force to standby valueForce to standby not indicated (0).
      		Authentication parameter RAND.
      47
      		00100001
      .
                                
      		Information Element Identifier33.
      48-63
      .
                                
      		RAND value16 Octets (hex): D2 17 19 7F 1B....
      		GPRS ciphering key sequence number.
      64
      		1000....
      .
                                
      		Information Element Identifier8.
      		....0...
      .
                                
      		Sparespare value (0).
      		.....001
      .
                                
      		key sequence1 (1).
  •  06:11:40.890
Rx1-16  Off  NS-UNITDATA.UL-UNITDATA.UI [SNDCP]

    • 04 F1 00 00 01 05 01 C1 2B 4C 1B 00 00 34 08 88 52 F0 20 1C E3 01 A2 36 00 80 0E 01 3B 03 C2 C7
9D 2B 45 67 C8 D3 23 D7 F1 C3 C6 5E 42 11 77 2F CB 56 B4 59 7C 44 93 8C F0 3A 51 45 1E 17 48 D4
1C C2 78 47 E8 E2 9E 9A 7C 2F 8A A8 40 91 B7 F4 33 E5 4F 9F D6 EE F5 F7 0A 53 C1 57 96 25 77 80
86 36 D1 A6 47 AA 9A D9 0F B3 3B 65 6D 5C 1D 11 EC 5E 43 DE 43 39 F5 00 FF 83 B8 4C 05 B6 F7 71
3D 19 0A 2A 87 D4 F8 4A 83 93 64 D3 4E 1A C9 2D 5E B6 0C 85 99 D1 78 43 1E 92 D6 1F 90 1E ED E0
24 ED 22 AE A6 40 DF 9E CF D3 F5 FC 1E 2A A2 3C D0 10 F0 62 67 64 F4 6F 40 62 AB 41 97 7B D8 58
84 4C D6 2E BD CA 26 5E B7 A1 17 2D 9E AE 2C CB 12 94 8F 1F 03 78 22 D9 81 A2 8B F3 3D C0 C6 9C
AB 55 56 AB 0B CC A8 93 50 AC D1 6C 36 DC 65 14 A2 90 E5 D6 9B 19 51 E1 3B 3F 32 03 03 97 6A 23
8F C0 30 DB 04 5B 59 E9 CE 90 13 B3 5E BC 84 82 25 F1 B2 E6 D1 CA D6 FE 64 24 7C 20 8D 07 CD AF
71 AC 58 6A 5E 37 DF 30 C1 EB F4 03 56 4A 2A C7 E9 6D 88 A0 EF 5D 0B 32 F9 CC C5 D6 6D D7 48 7C
DC CE BF AF FF 69 75 0C 28 B8 81 CA 4C 6E BD 2F 8A BF E4 BD C9 88 59 8D

      POS
      		BINARY
      		NAME
      		VALUE
      		LAPF Frame Relay.
      		Address.
      00
      		000001..
      .
                                
      		DLCI (upper)1.
      		......0.
      .
                                
      		C/R0.
      		.......0
      .
                                
      		EA00.
      01
      		1111....
      .
                                
      		DLCI (lower)15.
      		....0...
      .
                                
      		FECN0.
      		.....0..
      .
                                
      		BECN0.
      		......0.
      .
                                
      		DE0.
      		.......1
      .
                                
      		EA11.
      		Information.
      2-343
      .
                                
      		Information342 Octets (hex): 00 00 01 05 01....
      		GSM Gb NS.
      02
      		00000000
      .
                                
      		PDU typeNS-UNITDATA (0).
      		NS SDU Control Bits.
      03
      		000000..
      .
                                
      		Spare0.
      		......0.
      .
                                
      		R-bit0 (No request for change flow).
      		.......0
      .
                                
      		C-bit0 (No confirmation for change flow).
      		BVCI.
      4-5
      .
                                
      		BVCI261.
      		NS SDU.
      6-343
      .
                                
      		NS SDU338 Octets (hex): 01 C1 2B 4C 1B....
      		GSM BSSGP.
      06
      		00000001
      .
                                
      		PDU typeUL-UNITDATA (1).
      7-10
      .
                                
      		TLLI4 Octets (hex): C1 2B 4C 1B.
      		QoS Profile.
      11-12
      .
                                
      		Peak bit rate provided by the network0.
      13
      		00......
      .
                                
      		Spare0.
      		..1.....
      .
                                
      		C/R1 (The SDU does not contain a LLC ACK or SACK command/response frame type).
      		...1....
      .
                                
      		T1 (The SDU contains data).
      		....0...
      .
                                
      		A0 (Radio interface uses RLC/MAC ARQ functionality).
      		.....100
      .
                                
      		Precedence4 (Reserved(DL-UNITDATA) / Radio priority Unknown(UL-UNITDATA)).
      		Cell Identifier.
      14
      		00001000
      .
                                
      		Information Element IdentifierCell Identifier (8).
      15
      		10001000
      .
                                
      		Length indicator8.
      16
      		0101....
      .
                                
      		MCC digit 25.
      		....0010
      .
                                
      		MCC digit 12.
      17
      		1111....
      .
                                
      		MNC digit 315.
      		....0000
      .
                                
      		MCC digit 30.
      18
      		0010....
      .
                                
      		MNC digit 22.
      		....0000
      .
                                
      		MNC digit 10.
      19-20
      .
                                
      		LAC7395.
      21
      		00000001
      .
                                
      		RAC1.
      22-23
      .
                                
      		Cell Identity41526.
      		Alignment octets.
      24
      		00000000
      .
                                
      		Information Element IdentifierAlignment octets (0).
      25
      		10000000
      .
                                
      		Length indicator0.
      .
                                
      		Aligment octets0 Octets.
      		LLC-PDU.
      26
      		00001110
      .
                                
      		Information Element IdentifierLLC-PDU (14).
      27-28
      .
                                
      		Length indicator315.
      29-343
      .
                                
      		LLC-PDU315 Octets (hex): 03 C2 C7 9D 2B....
      		GSM Gb LLC.
      29
      		0.......
      .
                                
      		PD0 (LLC frame).
      		.0......
      .
                                
      		C/R0.
      		..00....
      .
                                
      		X0 (spare value).
      		....0011
      .
                                
      		SAPI3 (User data 3).
      30
      		110.....
      .
                                
      		FormatUI format (6).
      		...00...
      .
                                
      		X20 (spare value).
      30-31
      .
                                
      		N(U)177.
      31
      		......1.
      .
                                
      		E1 (information and FCS fields of the UI frame are encrypted).
      		.......1
      .
                                
      		PM1 (FCS covers the frame header and information fields).
      32-343
      .
                                
      		Information field312 Octets (hex): 9D 2B 45 67 C8....
      .
                                        
      		
field: Ciphered, not parsed.

  •  06:11:40.900
Rx1-16  Off  NS-UNITDATA.UL-UNITDATA.UI [SNDCP]

    • 04 F1 00 00 01 05 01 C1 2B 4C 1B 00 00 34 08 88 52 F0 20 1C E3 01 A2 36 00 80 0E B2 03 C2 CB E2
4A 95 46 82 A0 7D 98 45 61 58 C1 2A 2C E4 C1 91 17 C0 B7 4F BA 7D 74 57 4A 31 32 0E A3 E8 20 23
39 CE 01 70 9D 7C 2D 24 DD A0 DD FC 86 D7

      POS
      		BINARY
      		NAME
      		VALUE
      		LAPF Frame Relay.
      		Address.
      00
      		000001..
      .
                                
      		DLCI (upper)1.
      		......0.
      .
                                
      		C/R0.
      		.......0
      .
                                
      		EA00.
      01
      		1111....
      .
                                
      		DLCI (lower)15.
      		....0...
      .
                                
      		FECN0.
      		.....0..
      .
                                
      		BECN0.
      		......0.
      .
                                
      		DE0.
      		.......1
      .
                                
      		EA11.
      		Information.
      2-77
      .
                                
      		Information76 Octets (hex): 00 00 01 05 01....
      		GSM Gb NS.
      02
      		00000000
      .
                                
      		PDU typeNS-UNITDATA (0).
      		NS SDU Control Bits.
      03
      		000000..
      .
                                
      		Spare0.
      		......0.
      .
                                
      		R-bit0 (No request for change flow).
      		.......0
      .
                                
      		C-bit0 (No confirmation for change flow).
      		BVCI.
      4-5
      .
                                
      		BVCI261.
      		NS SDU.
      6-77
      .
                                
      		NS SDU72 Octets (hex): 01 C1 2B 4C 1B....
      		GSM BSSGP.
      06
      		00000001
      .
                                
      		PDU typeUL-UNITDATA (1).
      7-10
      .
                                
      		TLLI4 Octets (hex): C1 2B 4C 1B.
      		QoS Profile.
      11-12
      .
                                
      		Peak bit rate provided by the network0.
      13
      		00......
      .
                                
      		Spare0.
      		..1.....
      .
                                
      		C/R1 (The SDU does not contain a LLC ACK or SACK command/response frame type).
      		...1....
      .
                                
      		T1 (The SDU contains data).
      		....0...
      .
                                
      		A0 (Radio interface uses RLC/MAC ARQ functionality).
      		.....100
      .
                                
      		Precedence4 (Reserved(DL-UNITDATA) / Radio priority Unknown(UL-UNITDATA)).
      		Cell Identifier.
      14
      		00001000
      .
                                
      		Information Element IdentifierCell Identifier (8).
      15
      		10001000
      .
                                
      		Length indicator8.
      16
      		0101....
      .
                                
      		MCC digit 25.
      		....0010
      .
                                
      		MCC digit 12.
      17
      		1111....
      .
                                
      		MNC digit 315.
      		....0000
      .
                                
      		MCC digit 30.
      18
      		0010....
      .
                                
      		MNC digit 22.
      		....0000
      .
                                
      		MNC digit 10.
      19-20
      .
                                
      		LAC7395.
      21
      		00000001
      .
                                
      		RAC1.
      22-23
      .
                                
      		Cell Identity41526.
      		Alignment octets.
      24
      		00000000
      .
                                
      		Information Element IdentifierAlignment octets (0).
      25
      		10000000
      .
                                
      		Length indicator0.
      .
                                
      		Aligment octets0 Octets.
      		LLC-PDU.
      26
      		00001110
      .
                                
      		Information Element IdentifierLLC-PDU (14).
      27
      		10110010
      .
                                
      		Length indicator50.
      28-77
      .
                                
      		LLC-PDU50 Octets (hex): 03 C2 CB E2 4A....
      		GSM Gb LLC.
      28
      		0.......
      .
                                
      		PD0 (LLC frame).
      		.0......
      .
                                
      		C/R0.
      		..00....
      .
                                
      		X0 (spare value).
      		....0011
      .
                                
      		SAPI3 (User data 3).
      29
      		110.....
      .
                                
      		FormatUI format (6).
      		...00...
      .
                                
      		X20 (spare value).
      29-30
      .
                                
      		N(U)178.
      30
      		......1.
      .
                                
      		E1 (information and FCS fields of the UI frame are encrypted).
      		.......1
      .
                                
      		PM1 (FCS covers the frame header and information fields).
      31-77
      .
                                
      		Information field47 Octets (hex): E2 4A 95 46 82....
      .
                                        
      		
field: Ciphered, not parsed.

  •  06:11:40.910
Rx1-16  Off  NS-UNITDATA.UL-UNITDATA.UI [SNDCP]

    • 04 F1 00 00 01 38 01 C0 E0 18 1B 00 00 34 08 88 52 F0 20 1C E3 01 9F 02 00 80 0E BE 03 C6 EF 4C
E3 80 C9 C8 7F 15 4A DD 2E 81 EF 65 F1 8D 4A 85 00 EA 52 F2 88 3F E3 07 AE 8F 00 BE EF 58 05 92
90 DF CB CA 92 B5 E7 91 C5 A1 8C F2 B7 DD 0F 8E 6D F1 1F 16 A5 43 13 95 A3 0F

      POS
      		BINARY
      		NAME
      		VALUE
      		LAPF Frame Relay.
      		Address.
      00
      		000001..
      .
                                
      		DLCI (upper)1.
      		......0.
      .
                                
      		C/R0.
      		.......0
      .
                                
      		EA00.
      01
      		1111....
      .
                                
      		DLCI (lower)15.
      		....0...
      .
                                
      		FECN0.
      		.....0..
      .
                                
      		BECN0.