![]() Print timestamp (unix time + microseconds as in gettimeofday) before each line. The value of the field may be printed with -v option. Value 0 implies using raw socket (not supported on ICMP datagram socket). Set the identification field of ECHO_REQUEST. Essentially, this socket option is not used by Linux kernel. ![]() Set the SO_DEBUG option on the socket being used. CĬall connect() syscall on socket creation. ![]() With deadline option, ping waits for count ECHO_REPLY packets, until the timeout expires. Stop after sending count ECHO_REQUEST packets. The address is bound to one selected when ping starts. bĭo not allow ping to change source address of probes. On networks with low RTT this mode is essentially equivalent to flood mode. Minimal interval is 200msec unless super-user. Interpacket interval adapts to round-trip time, so that effectively not more than one (or more, if preload is set) unanswered probe is present in the network. Intermediate hops may not be allowed, because IPv6 source routing was deprecated (RFC5095). Ping can also send IPv6 Node Information Queries (RFC4620). Using only one of them explicitly can be enforced by specifying -4 or -6. 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. Ping uses the ICMP protocol's mandatory ECHO_REQUEST datagram to elicit an ICMP ECHO_RESPONSE from a host or gateway. Also display a message if no response was received: ping -O host.Ping host and ring the bell when a packet is received (if your terminal supports it): ping -a host.Ping host without trying to lookup symbolic names for addresses: ping -n host.Ping host, specifying the interval in seconds between requests (default is 1 second): ping -i seconds host. ![]() Ping a host only a specific number of times: ping -c count host.Send ICMP ECHO_REQUEST to network hosts Examples (TL DR) ![]()
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