Assuming hex-encoded packet
400F2E01260025000322CA13A53EEA16C8AB9C3A73B7F8

Message Type = Data
  PHYPayload = 400F2E01260025000322CA13A53EEA16C8AB9C3A73B7F8

( PHYPayload = MHDR[1] | MACPayload[..] | MIC[4] )
        MHDR = 40
  MACPayload = 0F2E01260025000322CA13A53EEA16C8AB9C
         MIC = 3A73B7F8 (from packet)
             = 3A73B7F8 (expected, assuming 32 bits frame counter with MSB 0000)

( MACPayload = FHDR | FPort | FRMPayload )
        FHDR = 0F2E0126002500
       FPort = 03
  FRMPayload = 22CA13A53EEA16C8AB9C (from packet, encrypted)
             = 1246002409B1FF000CDE (decrypted)

      ( FHDR = DevAddr[4] | FCtrl[1] | FCnt[2] | FOpts[0..15] )
     DevAddr = 26012E0F (Big Endian)
       FCtrl = 00
        FCnt = 0025 (Big Endian)
       FOpts = 

Message Type = Unconfirmed Data Up
   Direction = up
        FCnt = 37 (from packet, 16 bits) 
             = 37 (32 bits, assuming MSB 0x0000)
   FCtrl.ACK = false
   FCtrl.ADR = false




Assuming hex-encoded packet
400F2E012600270004C44374C5F70C9CC87D66339500E8

Message Type = Data
  PHYPayload = 400F2E012600270004C44374C5F70C9CC87D66339500E8

( PHYPayload = MHDR[1] | MACPayload[..] | MIC[4] )
        MHDR = 40
  MACPayload = 0F2E012600270004C44374C5F70C9CC87D66
         MIC = 339500E8 (from packet)
             = 339500E8 (expected, assuming 32 bits frame counter with MSB 0000)

( MACPayload = FHDR | FPort | FRMPayload )
        FHDR = 0F2E0126002700
       FPort = 04
  FRMPayload = C44374C5F70C9CC87D66 (from packet, encrypted)
             = 1240001A09B1FF000CDE (decrypted)

      ( FHDR = DevAddr[4] | FCtrl[1] | FCnt[2] | FOpts[0..15] )
     DevAddr = 26012E0F (Big Endian)
       FCtrl = 00
        FCnt = 0027 (Big Endian)
       FOpts = 

Message Type = Unconfirmed Data Up
   Direction = up
        FCnt = 39 (from packet, 16 bits) 
             = 39 (32 bits, assuming MSB 0x0000)
   FCtrl.ACK = false
   FCtrl.ADR = false




Assuming hex-encoded packet
400F2E0126002F0002E355B2DF408F52C94FBD73CD45F7

Message Type = Data
  PHYPayload = 400F2E0126002F0002E355B2DF408F52C94FBD73CD45F7

( PHYPayload = MHDR[1] | MACPayload[..] | MIC[4] )
        MHDR = 40
  MACPayload = 0F2E0126002F0002E355B2DF408F52C94FBD
         MIC = 73CD45F7 (from packet)
             = 73CD45F7 (expected, assuming 32 bits frame counter with MSB 0000)

( MACPayload = FHDR | FPort | FRMPayload )
        FHDR = 0F2E0126002F00
       FPort = 02
  FRMPayload = E355B2DF408F52C94FBD (from packet, encrypted)
             = 1240002209B1FF000CDE (decrypted)

      ( FHDR = DevAddr[4] | FCtrl[1] | FCnt[2] | FOpts[0..15] )
     DevAddr = 26012E0F (Big Endian)
       FCtrl = 00
        FCnt = 002F (Big Endian)
       FOpts = 

Message Type = Unconfirmed Data Up
   Direction = up
        FCnt = 47 (from packet, 16 bits) 
             = 47 (32 bits, assuming MSB 0x0000)
   FCtrl.ACK = false
   FCtrl.ADR = false