TCP and udp options

RFC 9293 Transmission Control Protocol (TCP) 3.2 Specific Option Definitions https://www.rfc-editor.org/rfc/rfc9293.html#section-3.2

Experimental Values in IPv4, IPv6, ICMPv4, ICMPv6, UDP, and TCP Headers https://www.rfc-editor.org/rfc/rfc4727.html

TCP_option_address 支持在TCP option中携带ipv4地址和端口号，非标准option，使用kind=254标识 https://github.com/Huawei/TCP_option_address/blob/master/src/toa.c

Transport Options for UDP https://www.rfc-editor.org/rfc/rfc9868.html

Transmission Control Protocol (TCP) Parameters https://www.iana.org/assignments/tcp-parameters/tcp-parameters.xhtml#tcp-udp-exids

User Datagram Protocol (UDP) https://www.iana.org/assignments/udp/udp.xhtml