Path: utzoo!news-server.csri.toronto.edu!cs.utexas.edu!swrinde!zaphod.mps.ohio-state.edu!magnus.acs.ohio-state.edu!tut.cis.ohio-state.edu!ucbvax!acdhq.north.de!kaba From: kaba@acdhq.north.de (Kai Bartels) Newsgroups: comp.protocols.tcp-ip Subject: Re: Re: do FINs count as 1 like SYNs ? Message-ID: <11Mar911157.AA06796@acdhq.north.de> Date: 11 Mar 91 11:57:06 GMT Sender: daemon@ucbvax.BERKELEY.EDU Organization: The Internet Lines: 24 > >Hi! Hi! > Kai -- > RFC 791 (which updated 763) describes the closing sequence pretty > well and illustrates this case in Figure 13 (page 39). The packet that ACKs > the FIN will have an ACK number one greater than the FIN's sequence number. > So, yes, the sequence number is incremented after the FIN is transmitted > (so that ACK will == snd.NXT). > You may want to also get a copy of RFC-1122 (Requirements for Internet > hosts): this document clarifies a number of points in both the TCP and IP > protocol specifications that have been interpreted in different (and frequently > incompatible) ways. Thanks a lot! This rfc1122 is really great! I think it'll help me with a bunch (spelling?) of problems in the future. > -- Frank Solensky / Clearpoint Research Corp. greetings, Kai -------------------- Kai Bartels | kaba@acdhq.UUCP | The sound of bombs Hudemuehler 37 | kaba@acdhq.north.de | Has given way to childrens cries D-2800 HB 41 | G14B@DHBRRZ41.BITNET | (0421)34636-13 |g14b@sie.rz.uni-bremen.de|------------------------------ bang: {uunet|pyramid|rutgers}!cbmvax!cbmehq!cbmger!acdhq!kaba