RFC 7413, "TCP Fast Open", December 2014Source of RFC: tcpm (tsv)
See Also: RFC 7413w/ inline errata
Errata ID: 4239
Publication Format(s) : TEXT
Reported By: Matthew Luckie
Date Reported: 2015-01-22
Verifier Name: Martin Stiemerling
Date Verified: 2015-10-31
Section 4.2.1 says:
1. The client sends a SYN packet with a Fast Open option with a Length field of 0 (empty cookie field).
It should say:
1. The client sends a SYN packet with a Fast Open option with a Length field of 2 (empty cookie field).
A Nil fast-open option has an option length of 2. A length field of zero would mean an invalid TCP option.