RFC Errata
RFC 793, "Transmission Control Protocol", September 1981
Note: This RFC has been obsoleted by RFC 9293
Source of RFC: LegacyArea Assignment: tsv
See Also: RFC 793 w/ inline errata
Errata ID: 1572
Status: Verified
Type: Technical
Publication Format(s) : TEXT
Reported By: Constantin Hagemeier
Date Reported: 2008-10-11
Verifier Name: Wes Eddy
Date Verified: 2011-08-13
Section 3.4 says:
If the incoming segment has an ACK field, the reset takes its sequence number from the ACK field of the segment, otherwise the reset has sequence number zero and the ACK field is set to the sum of the sequence number and segment length of the incoming segment.
It should say:
If the incoming segment has the ACK bit set, the reset takes its sequence number from the ACK field of the segment, otherwise the reset has sequence number zero and the ACK field is set to the sum of the sequence number and segment length of the incoming segment.
Notes:
Every segment has an ACK field.