Determine switch buffer size

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LEARN ABOUT DEBIAN

guessnet-scan

GUESSNET-SCAN(8)					      System Manager's Manual						  GUESSNET-SCAN(8)

NAME

       guessnet-scan - guess network configuration data by looking at network traffic

SYNOPSIS

       guessnet-scan [options] [ethernet_interface]

DESCRIPTION

       Guessnet-scan tries to deduce network configuration data by watching network traffic at a given Ethernet interface.

       After  scanning	network  traffic  for some time, guessnet-scan prints a configuration string suitable for inclusion in /etc/network/inter-
       faces.

       Note that guessnet-scan uses heuristics and wild guesses and that the resulting data is not guaranteed to  be  accurate.   The  program	is
       intended to be used as a first try at getting network configuration data without bothering anyone.

OPTIONS

       Options follow the usual GNU conventions,

       --debug
	      Print debugging messages.

       --help Show a brief summary of commandline options.

       --init-time=int
	      Time in seconds to wait for the interface to initialize when it is not found already up at program startup.  Default: 3 seconds.

       -t, --timeout=int
	      Time in seconds to watch for network traffic.  Default: 5 seconds.

       -v, --verbose
	      Operate verbosely.

       --version
	      Show the version number of the program.

SCANNING REQUIREMENTS

       To  correctly  identify all data of the local network, guessnet-scan needs to see traffic related to a host in the local network and to the
       local gateway, if any.

       To be able to identify the network gateway, guessnet-scan also needs to see some traffic directed to the external network: you can help the
       detection  by  generating  some	outbound IP traffic during the scan, for example by browsing a web page (without proxy) or using telnet to
       open a connection to some remote host.

       Note that if you are connected to a switch, guessnet-scan won't probably be able to work, since the switch will isolate it from the network
       traffic that the other machines are generating.

SEE ALSO

       guessnet(8), interfaces(5).

AUTHOR

       Guessnet-scan was written by Enrico Zini <enrico@debian.org>.

								  10 October 2004						  GUESSNET-SCAN(8)

UNIX for Dummies Questions & Answers