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09-29-2009, 02:05 AM
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#1
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Member
Registered: May 2009
Posts: 44
Rep:
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ping command
hi
i want to know how does ping command work? and what does it mean by option -b, -B, and -d ; i went through the man page but i didnt understand the meaning of these options.... plz help me with some example.
thanx!!!!
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09-29-2009, 02:10 AM
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#2
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Senior Member
Registered: Jul 2008
Location: /dev/null
Posts: 1,173
Rep:
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09-29-2009, 02:16 AM
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#3
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Member
Registered: May 2009
Posts: 44
Original Poster
Rep:
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Quote:
Originally Posted by ~sHyLoCk~
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i know this buddy.... and already read this... but the man page couldn't clear these options..
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09-29-2009, 02:17 AM
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#4
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Senior Member
Registered: Apr 2008
Location: Gurgaon, India
Distribution: Cent OS 6/7
Posts: 4,638
Rep:
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Excerpt from man page:
Code:
ping uses the ICMP protocol’s mandatory ECHO_REQUEST datagram to elicit
an ICMP ECHO_RESPONSE from a host or gateway. ECHO_REQUEST datagrams
(‘‘pings’’) have an IP and ICMP header, followed by a struct timeval
and then an arbitrary number of ‘‘pad’’ bytes used to fill out the
packet.
Code:
-b Allow pinging a broadcast address.
-B Do not allow ping to change source address of probes. The
address is bound to one selected when ping starts.
Code:
-d Set the SO_DEBUG option on the socket being used. Essentially,
this socket option is not used by Linux kernel.
What did not you understand in this? Can you elaborate?
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09-29-2009, 03:06 AM
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#5
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Senior Member
Registered: Apr 2007
Location: Germany
Distribution: Slackware
Posts: 3,979
Rep:
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Hi gr8linux,
ping is part of the icmp-protocol (Internet-Control-Message-Protokol). I'd suggest to google for icmp. Reading http://en.wikipedia.org/wiki/Interne...ssage_Protocol will point you in the right direction.
Markus
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09-29-2009, 03:10 AM
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#6
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Senior Member
Registered: Apr 2004
Location: Brisbane, Australia
Distribution: Devuan
Posts: 3,686
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Hi generally I use the ping command like this...
ping -c 4 (address number or website name)
This will send a ping 4 times to the related address and display the outcome of each. -c = count
cheers, Glenn
Last edited by GlennsPref; 09-29-2009 at 03:11 AM.
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09-29-2009, 03:20 AM
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#7
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Senior Member
Registered: May 2007
Posts: 1,007
Rep:
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dear sir
ping is the same essentially on Windows as on unix. The minus p,t, and god knows what is an option, which takes a bit of learning- best of luck.
Fred.
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09-29-2009, 10:22 AM
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#8
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Member
Registered: May 2003
Location: West Midlands, United Kingdom.
Distribution: Slackware 14.1, Centos 7
Posts: 278
Rep:
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Your kidding me right linuxlover.chaitanya. You expect a none geek to understand those man page entries??
Code:
Allow pinging a broadcast address.
-B Do not allow ping to change source address of probes. The
address is bound to one selected when ping starts.
which means??
Code:
-d Set the SO_DEBUG option on the socket being used. Essentially,
this socket option is not used by Linux kernel.
and this? Just set the debug log level I suppose??
BashTin
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09-29-2009, 11:23 AM
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#9
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Senior Member
Registered: Dec 2008
Location: root
Distribution: Slackware & BSD
Posts: 1,669
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gr8linux,
if you want to read something about tcp-ip you may visit this site link.
Hope this helps.
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09-29-2009, 01:54 PM
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#10
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Senior Member
Registered: Jan 2005
Location: Roodepoort, South Africa
Distribution: Ubuntu 12.04, Antix19.3
Posts: 3,797
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Your question is not about ping but about networking. If you don't understand networking, you can not understand some of the ping options.
So time to study some networking 'basics'. If I had a link, I would provide one; sorry.
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12-24-2009, 12:00 AM
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#11
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LQ Newbie
Registered: Dec 2009
Posts: 2
Rep:
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Thanks
Hi I am jhon.
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12-24-2009, 12:01 AM
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#12
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LQ Newbie
Registered: Dec 2009
Posts: 2
Rep:
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Thanks
advertising removed
Last edited by pixellany; 12-24-2009 at 09:35 AM.
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12-24-2009, 12:12 AM
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#13
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Senior Member
Registered: Apr 2008
Location: Gurgaon, India
Distribution: Cent OS 6/7
Posts: 4,638
Rep:
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And that looks like SPAM............Reported.
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