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Introduction to Linux - A Hands on Guide
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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.
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
-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.
-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?