Wireshark · Display Filter Reference: Hypertext Transfer Protocol Version 3

Field name	Description	Type	Versions
http3.data	Data	Byte sequence	4.2.0 to 4.4.2
http3.data_not_decoded	Data not decoded	Label	3.4.0 to 3.6.24
http3.expert.header.encoded_state	HTTP3 header encoded block	Label	4.2.0 to 4.4.2
http3.expert.header_decoding.blocked	Failed to decode HTTP3 header name/value (blocked on QPACK)	Label	4.2.0 to 4.4.2
http3.expert.header_decoding.failed	Failed to decode HTTP3 header name/value	Label	4.2.0 to 4.4.2
http3.expert.header_decoding.no_output	Failed to decode HTTP3 header name/value (QPACK decoder no emission)	Label	4.2.0 to 4.4.2
http3.frame	Frame	Label	4.2.0 to 4.4.2
http3.frame_length	Length	Unsigned integer (64 bits)	3.4.0 to 4.4.2
http3.frame_payload	Frame Payload	Byte sequence	3.4.0 to 4.4.2
http3.frame_type	Type	Unsigned integer (64 bits)	3.4.0 to 4.4.2
http3.header.header.name	Name	Character string	4.2.0 to 4.4.2
http3.header.qpack.blocked	HEADERS head-of-line-blocked on QPACK encoder stream	Boolean	4.2.0 to 4.4.2
http3.header.qpack.blocked.rcint	Required instruction count	Unsigned integer (32 bits)	4.2.0 to 4.4.2
http3.header.qpack.blocked.wcint	Available instruction count	Unsigned integer (32 bits)	4.2.0 to 4.4.2
http3.headers.accept	accept	Character string	4.2.0 to 4.4.2
http3.headers.accept_charset	accept-charset	Character string	4.2.0 to 4.4.2
http3.headers.accept_encoding	accept-encoding	Character string	4.2.0 to 4.4.2
http3.headers.accept_language	accept-language	Character string	4.2.0 to 4.4.2
http3.headers.accept_ranges	accept-ranges	Character string	4.2.0 to 4.4.2
http3.headers.access_control_allow_origin	access-control-allow-origin	Character string	4.2.0 to 4.4.2
http3.headers.age	age	Unsigned integer (64 bits)	4.2.0 to 4.4.2
http3.headers.allow	allow	Character string	4.2.0 to 4.4.2
http3.headers.authority	:authority	Character string	4.2.0 to 4.4.2
http3.headers.authorization	authorization	Character string	4.2.0 to 4.4.2
http3.headers.cache_control	cache-control	Character string	4.2.0 to 4.4.2
http3.headers.content_disposition	content-disposition	Character string	4.2.0 to 4.4.2
http3.headers.content_encoding	content-encoding	Character string	4.2.0 to 4.4.2
http3.headers.content_language	content-language	Character string	4.2.0 to 4.4.2
http3.headers.content_length	content-length	Unsigned integer (64 bits)	4.2.0 to 4.4.2
http3.headers.content_location	content-location	Character string	4.2.0 to 4.4.2
http3.headers.content_range	content-range	Character string	4.2.0 to 4.4.2
http3.headers.content_type	content-type	Character string	4.2.0 to 4.4.2
http3.headers.cookie	cookie	Character string	4.2.0 to 4.4.2
http3.headers.count	Headers Count	Unsigned integer (32 bits)	4.2.0 to 4.4.2
http3.headers.date	date	Character string	4.2.0 to 4.4.2
http3.headers.etag	etag	Character string	4.2.0 to 4.4.2
http3.headers.expect	expect	Character string	4.2.0 to 4.4.2
http3.headers.expires	expires	Character string	4.2.0 to 4.4.2
http3.headers.from	from	Character string	4.2.0 to 4.4.2
http3.headers.header	Header	Label	4.2.0 to 4.4.2
http3.headers.header.length	Header Length	Unsigned integer (32 bits)	4.2.0 to 4.4.2
http3.headers.header.name.length	Name Length	Unsigned integer (32 bits)	4.2.0 to 4.4.2
http3.headers.header.value	Value	Character string	4.2.0 to 4.4.2
http3.headers.header.value.length	Value Length	Unsigned integer (32 bits)	4.2.0 to 4.4.2
http3.headers.if_match	if-match	Character string	4.2.0 to 4.4.2
http3.headers.if_modified_since	if-modified-since	Character string	4.2.0 to 4.4.2
http3.headers.if_none_match	if-none-match	Character string	4.2.0 to 4.4.2
http3.headers.if_range	if-range	Character string	4.2.0 to 4.4.2
http3.headers.if_unmodified_since	if-unmodified-since	Character string	4.2.0 to 4.4.2
http3.headers.last_modified	last-modified	Character string	4.2.0 to 4.4.2
http3.headers.link	link	Character string	4.2.0 to 4.4.2
http3.headers.location	location	Character string	4.2.0 to 4.4.2
http3.headers.max_forwards	max-forwards	Unsigned integer (64 bits)	4.2.0 to 4.4.2
http3.headers.method	:method	Character string	4.2.0 to 4.4.2
http3.headers.path	:path	Character string	4.2.0 to 4.4.2
http3.headers.proxy_authenticate	proxy-authenticate	Character string	4.2.0 to 4.4.2
http3.headers.proxy_authorization	proxy-authorization	Character string	4.2.0 to 4.4.2
http3.headers.range	range	Character string	4.2.0 to 4.4.2
http3.headers.referer	referer	Character string	4.2.0 to 4.4.2
http3.headers.refresh	refresh	Character string	4.2.0 to 4.4.2
http3.headers.retry_after	retry-after	Character string	4.2.0 to 4.4.2
http3.headers.scheme	:scheme	Character string	4.2.0 to 4.4.2
http3.headers.server	server	Character string	4.2.0 to 4.4.2
http3.headers.set_cookie	set-cookie	Character string	4.2.0 to 4.4.2
http3.headers.status	:status	Unsigned integer (16 bits)	4.2.0 to 4.4.2
http3.headers.strict_transport_security	strict-transport-security	Character string	4.2.0 to 4.4.2
http3.headers.user_agent	user-agent	Character string	4.2.0 to 4.4.2
http3.headers.vary	vary	Character string	4.2.0 to 4.4.2
http3.headers.via	via	Character string	4.2.0 to 4.4.2
http3.headers.www_authenticate	www-authenticate	Character string	4.2.0 to 4.4.2
http3.priority_update_element_id	Priority Update Element ID	Unsigned integer (64 bits)	4.0.0 to 4.4.2
http3.priority_update_field_value	Priority Update Field Value	Character string	4.0.0 to 4.4.2
http3.push_id	Push ID	Unsigned integer (64 bits)	3.4.0 to 4.4.2
http3.qpack.encoder	QPACK encoder	Byte sequence	4.2.0 to 4.4.2
http3.qpack.encoder.icnt	QPACK encoder instruction count	Unsigned integer (64 bits)	4.2.0 to 4.4.2
http3.qpack.encoder.icnt.inc	QPACK encoder instruction count increment	Unsigned integer (32 bits)	4.2.0 to 4.4.2
http3.qpack.encoder.opcode.dtable_cap	Set Dynamic Table Capacity	Byte sequence	4.2.0 to 4.4.2
http3.qpack.encoder.opcode.dtable_cap.val	Capacity	Unsigned integer (64 bits)	4.2.0 to 4.4.2
http3.qpack.encoder.opcode.duplicate	Duplicate	Byte sequence	4.2.0 to 4.4.2
http3.qpack.encoder.opcode.insert	Insert with Literal Name	Byte sequence	4.2.0 to 4.4.2
http3.qpack.encoder.opcode.insert.hname	Literal Name (Huffman)	Byte sequence	4.2.0 to 4.4.2
http3.qpack.encoder.opcode.insert.hval	Value (Huffman)	Byte sequence	4.2.0 to 4.4.2
http3.qpack.encoder.opcode.insert.name	Literal Name	Byte sequence	4.2.0 to 4.4.2
http3.qpack.encoder.opcode.insert.val	Value	Byte sequence	4.2.0 to 4.4.2
http3.qpack.encoder.opcode.insert_indexed	Insert with Name Reference	Byte sequence	4.2.0 to 4.4.2
http3.qpack.encoder.opcode.insert_indexed.hval	Value (Huffman)	Byte sequence	4.2.0 to 4.4.2
http3.qpack.encoder.opcode.insert_indexed.ref	Name Reference	Byte sequence	4.2.0 to 4.4.2
http3.qpack.encoder.opcode.insert_indexed.val	Value	Byte sequence	4.2.0 to 4.4.2
http3.qpack_enc_failed	Error decoding QPACK buffer	Label	4.2.0 to 4.4.2
http3.request.full_uri	Full request URI	Character string	4.2.0 to 4.4.2
http3.settings	Settings	Label	3.6.0 to 4.4.2
http3.settings.extended_connect	Extended CONNECT	Unsigned integer (64 bits)	4.0.0 to 4.4.2
http3.settings.h3_datagram	H3 DATAGRAM	Unsigned integer (64 bits)	4.2.0 to 4.4.2
http3.settings.h3_datagram_draft04	H3 DATAGRAM Draft04	Unsigned integer (64 bits)	4.2.0 to 4.4.2
http3.settings.id	Settings Identifier	Unsigned integer (64 bits)	3.6.0 to 4.4.2
http3.settings.max_field_section_size	Max header list size	Unsigned integer (64 bits)	3.6.0 to 4.4.2
http3.settings.qpack.blocked_streams	Blocked Streams	Unsigned integer (64 bits)	3.6.2 to 4.4.2
http3.settings.qpack.max_table_capacity	Max Table Capacity	Unsigned integer (64 bits)	3.6.0 to 4.4.2
http3.settings.qpak.blocked_streams	Blocked Streams	Unsigned integer (64 bits)	3.6.0 to 3.6.1
http3.settings.value	Settings Value	Unsigned integer (64 bits)	3.6.0 to 4.4.2
http3.settings.webtransport	WebTransport	Unsigned integer (64 bits)	4.2.0 to 4.4.2
http3.stream	Request Stream	Label	4.2.0 to 4.4.2
http3.stream.uni	Uni Stream	Label	4.2.0 to 4.4.2
http3.stream_type	Stream Type	Unsigned integer (64 bits)	3.4.0 to 4.0.17
http3.stream_uni_type	Uni Stream Type	Unsigned integer (64 bits)	4.2.0 to 4.4.2
http3.unknown_stream_type	An unknown stream type was encountered	Label	3.4.0 to 4.4.2