Интерактивная система просмотра системных руководств (man-ов)
guessnet-scan (8)
>> guessnet-scan (8) ( Linux man: Команды системного администрирования )
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/interfaces.
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.
