Here:
Aldebaran sniffer v3.0
http://www.rogala.3d.pl
Platforms: Linux
..................................................................................
Aldebaran sniffer v3.0.2
http://www.rogala.3d.pl
Platforms: Linux
..................................................................................
Altivore 0.9.3
http://www.networkice.com/altivore/
Platforms: N/A
..................................................................................
Analyzer
http://netgroup-serv.polito.it/analyzer/
Platforms: Windows 2000, Windows 95/98, Windows NT
..................................................................................
Anger 1.33
http://www.securityfocus.com/tools/5
Platforms: AIX, BSDI, DG-UX, Digital UNIX/Alpha, FreeBSD, HP-UX, IRIX, Linux, NetBSD, OpenBSD, SCO, Solaris, SunOS, True64 UNIX, UNIX, Unixware
..................................................................................
ARP MITM
http://teso.scene.at/releases.php
Platforms: Linux, Solaris, UNIX
..................................................................................
ARP0c connection interceptor
http://www.phenoelit.de/fr/tools.html
Platforms: Linux, UNIX
..................................................................................
ASniffer 1.0 beta 4
http://www.asniffer.com/download.html
Platforms: Windows 2000, Windows 95/98, Windows NT
..................................................................................
COLD
http://www.panservice.it/cold/
Platforms: Linux
..................................................................................
Coopersniff 0.1
http://www4.50megs.com/sniffer/index.html
Platforms: Windows NT
..................................................................................
Despoof 0.9
http://razor.bindview.com/tools/desc...of_readme.html
Platforms: FreeBSD, Linux, OpenBSD
..................................................................................
Dsniff 2.3
http://www.monkey.org/~dugsong/dsniff/
Platforms: FreeBSD, Linux, NetBSD, OpenBSD, Solaris
..................................................................................
Echelon for Dummies
http://1337.tsx.org/
Platforms: AIX, FreeBSD, IRIX, Linux, NetBSD, OpenBSD, Solaris
..................................................................................
Epan
http://www.et-inf.fho-emden.de/~tobias/epan/
Platforms: FreeBSD, Linux, Solaris, True64 UNIX, Ultrix
..................................................................................
ethereal-0.9.4
http://www.ethereal.com/
Platforms: AIX, FreeBSD, HP-UX, IRIX, Linux, NetBSD, OpenBSD, SCO, Solaris, True64 UNIX
..................................................................................
ettercap
http://ettercap.sourceforge.net/
Platforms: Linux, xBSD, Mac OS X (darwin 1.3)
..................................................................................
Gnusniff
http://www.ozemail.com.au/~peterhawkins/gnusniff.html
Platforms: Linux
..................................................................................
GreedyDog 1.30
http://shadowpenguin.backsection.net
Platforms: FreeBSD, IRIX, Linux, Solaris, SunOS
..................................................................................
hunt 1.5
http://lin.fsid.cvut.cz/~kra/index.html
Platforms: Linux, Solaris, UNIX
..................................................................................
IPgrab 0.9.6
http://ipgrab.sourceforge.net/
Platforms: FreeBSD, Linux, Solaris
..................................................................................
ippl
http://www.via.ecp.fr/~hugo/ippl/
Platforms: Linux
..................................................................................
KSniffer 0.1.5
http://ksniffer.veracity.nu/
Platforms: Linux
..................................................................................
ksnuffle 2.2
http://www.quaking.demon.co.uk/ksnuffle.html
Platforms: Linux
..................................................................................
LanKiller v1.0
http://www.securityfocus.com/tools/2015
Platforms: Linux
..................................................................................
NATAS 3.00.01
http://intex.ath.cx/natas.shtml
Platforms: Windows 2000
..................................................................................
netlog
http://www.securityfocus.com/tools/136
Platforms: SunOS
..................................................................................
ngrep v1.40
http://ngrep.sourceforge.net/
Platforms: AIX, Digital UNIX/Alpha, FreeBSD, IRIX, Linux, OpenBSD, Solaris, Windows 2000, Windows 95/98, Windows NT
..................................................................................
NtSniff
http://www.maticad.it/davide
Platforms: Windows NT
..................................................................................
Pdump 0.8
http://pdump.lucidx.com/
Platforms: Linux, SunOS
..................................................................................
RawSnif v0.8
http://nightfallsecurity.com/downloads/rawsnif.html
Platforms: FreeBSD, Linux, OpenBSD
..................................................................................
readsmb
http://www.basementresearch.net
Platforms: BSDI, FreeBSD, Linux, NetBSD, OpenBSD
..................................................................................
RelayTCP
http://www.dlcsistemas.com/html/relay_tcp.html
Platforms: Windows 2000, Windows 95/98, Windows NT
..................................................................................
RPCAP v0.1
http://srikrishnan.freeservers.com/
Platforms: Linux
..................................................................................
Serial line sniffer v0.3.4
http://www.azstarnet.com/~ymg/software.html
Platforms: Linux
..................................................................................
Smit 0.12
http://www.starzetz.de
Platforms: Linux
..................................................................................
sniffer 0.5
http://stev.org/sniffer.html
Platforms: Linux
..................................................................................
sniffit
http://reptile.rug.ac.be/~coder/sniffit/sniffit.html
Platforms: FreeBSD, IRIX, Linux, Solaris, SunOS
..................................................................................
Sniffit 0.3.7.beta
http://www.symbolic.it/Prodotti/sniffit.html
Platforms: Windows 2000, Windows NT
..................................................................................
Snuff 0.8.2
http://ns2.crw.se/~tm/projects/snuff/index.html
Platforms: Linux
..................................................................................
Super Sniffer v1.30
http://www.mobis.com/ajax/projects/
Platforms: BSDI, Digital UNIX/Alpha, FreeBSD, IRIX, Linux, NetBSD, OpenBSD, Solaris, SunOS, Ultrix
..................................................................................
Tcpflow 0.20
http://www.circlemud.org/~jelson/software/tcpflow/
Platforms: Linux
..................................................................................
Traffic-vis 0.34
http://www.mindrot.org/files/traffic-vis-0.34.tar.gz
Platforms: Linux
..................................................................................
Tvark alpha
http://www.securityfocus.com/tools/2075
Platforms: FreeBSD, NetBSD, OpenBSD
..................................................................................
WCI 2.1
http://www.phenoelit.de
Platforms: Windows 2000, Windows 95/98, Windows NT
..................................................................................
Win Sniffer Console 1.1
www.winsniffer.com
Platforms: Windows 2000, Windows 95/98, Windows NT
..................................................................................
Win Sniffer v1.22
www.winsniffer.com
Platforms: Windows 2000, Windows 95/98, Windows NT
..................................................................................
WinDump: tcpdump for Windows
http://netgroup-serv.polito.it/windump/default.htm
Platforms: Windows 2000, Windows 95/98, Windows NT