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Section: liboping (8) Updated: 2010-06-13
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oping - send ICMP ECHO_REQUEST to network hosts  


oping [-4 | -6] [-c count] [-i interval] host [host [host ...]]

oping [-4 | -6] [-c count] [-i interval] -f filename

noping [-4 | -6] [-c count] [-i interval] host [host [host ...]]

noping [-4 | -6] [-c count] [-i interval] -f filename  


oping uses ICMPv4 or ICMPv6 ECHO_REQUEST packets to measure a hosts reachability and the network latency. In contrast to the original ping(8) utility oping can send ICMP packets to multiple hosts in parallel and wait for all ECHO_RESPONSE packets to arrive. In contrast to the fping utility (URL is listed in ``SEE ALSO'') oping can use both, IPv4 and IPv6 transparently and side by side.

noping is an ncurses-based front-end to liboping which displays ping statistics online and highlights aberrant round-trip times if the terminal supports colors.  


Force the use of IPv4.
Force the use of IPv6.
-c count
Send (and receive) count ICMP packets, then stop and exit.
-i interval
Send one ICMP packet (per host) each interval seconds. This can be a floating-point number to specify sub-second precision.
-t ttl
Set the IP Time to Live to ttl. This must be a number between (and including) 1 and 255. If omitted, the value 64 is used.
-I address
Set the source address to use. You may either specify an IP number or a hostname. You cannot pass the interface name, as you can with GNU's ping(8) - use the -D option for that purpose.
-D interface name
Set the outgoing network device to use.
-f filename
Instead of specifying hostnames on the command line, read them from filename. If filename is -, read from "STDIN".

If the real user ID (as returned by getuid(2)) and the effective user ID (as returned by geteuid(2)) differ, the only argument allowed for this option is ``-'' (i. e. standard input). This is meant to avoid security issues when oping is installed with the SUID-bit.



ping(8), <>, liboping(3)  


liboping is written by Florian octo Forster <octo at>. Its homepage can be found at <>.

(c) 2005-2010 by Florian octo Forster.




This document was created by man2html, using the manual pages.
Time: 22:02:03 GMT, April 16, 2011