Wireshark · Display Filter Reference: Trivial File Transfer Protocol

Field name	Description	Type	Versions
tftp.block	Block	Unsigned integer (16 bits)	1.0.0 to 4.4.2
tftp.block.full	Full Block Number	Unsigned integer (32 bits)	3.0.0 to 4.4.2
tftp.block.wrap	TFTP block number is about to wrap	Label	3.0.0 to 4.4.2
tftp.blocksize_range	TFTP blocksize out of range	Label	1.12.0 to 4.4.2
tftp.data	Data	Byte sequence	2.0.0 to 4.4.2
tftp.destination_file	Destination File	Character string	1.0.0 to 4.4.2
tftp.error	TFTP ERROR packet	Label	3.0.0 to 4.4.2
tftp.error.code	Error code	Unsigned integer (16 bits)	1.0.0 to 4.4.2
tftp.error.message	Error message	Character string	1.0.0 to 4.4.2
tftp.fragment	TFTP Fragment	Frame number	3.4.0 to 4.4.2
tftp.fragment.count	Fragment count	Unsigned integer (32 bits)	3.4.0 to 4.4.2
tftp.fragment.error	Defragmentation error	Frame number	3.4.0 to 4.4.2
tftp.fragment.multipletails	Multiple tail fragments found	Boolean	3.4.0 to 4.4.2
tftp.fragment.overlap	Fragment overlap	Boolean	3.4.0 to 4.4.2
tftp.fragment.overlap.conflicts	Conflicting data in fragment overlap	Boolean	3.4.0 to 4.4.2
tftp.fragment.toolongfragment	Fragment too long	Boolean	3.4.0 to 4.4.2
tftp.fragments	TFTP Fragments	Label	3.4.0 to 4.4.2
tftp.likely_tsize_probe	Likely transfer size (tsize) probe	Label	3.0.0 to 4.4.2
tftp.msftwindow.unrecognized	Unrecognized msftwindow option	Label	3.6.0 to 4.4.2
tftp.nextwindowsize	Next Window Size	Unsigned integer (16 bits)	3.6.0 to 4.4.2
tftp.opcode	Opcode	Unsigned integer (16 bits)	1.0.0 to 4.4.2
tftp.option.name	Option name	Character string	1.0.0 to 4.4.2
tftp.option.value	Option value	Character string	1.0.0 to 4.4.2
tftp.reassembled.data	Reassembled TFTP data	Byte sequence	3.4.0 to 4.4.2
tftp.reassembled.length	Reassembled TFTP length	Unsigned integer (32 bits)	3.4.0 to 4.4.2
tftp.reassembled_in	Reassembled TFTP in frame	Frame number	3.4.0 to 4.4.2
tftp.request_frame	Request frame	Frame number	3.6.0 to 4.4.2
tftp.source_file	Source File	Character string	1.0.0 to 4.4.2
tftp.type	Type	Character string	1.0.0 to 4.4.2
tftp.windowsize.change	TFTP window size is changing	Label	3.6.0 to 4.4.2
tftp.windowsize_range	TFTP windowsize out of range	Label	3.6.0 to 4.4.2