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RFC 793, "Transmission Control Protocol", September 1981

Note: This RFC has been obsoleted by RFC 9293

Source of RFC: Legacy

Area 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.

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