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fping

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fping is a computer network utility program that can be compiled and run on various POSIX Operating Systems. It is similar to the ping program in that it sends out ICMP Echo Request packets and reports on host reachability, packet loss, and round trip delay. Unlike the ping program, fping has the ability to send out ICMP packets to multiple hosts in parallel reducing the time required for checking large numbers of hosts.

With fping’s various features, the user can specify the interval between pinging a certain host, record the package route, resolve names from IP addresses and much more Not only does fping use ICMP as stated above, but it can use raw sockets as well.

Since fping can ping any number of hosts, it does so without flooding the network At once a host replies, it is noted and removed from the host checklist However, if the host is unresponsive within a particular time restriction and/or retry limit, it will be deemed unreachable

Fping is meant to be used in scripts and thus its output is intended to be easily parsed as opposed to the ping program


Examples of Fping Commands

This command is used to determine if the router is up: 

  fping router

An example output: 

  Router is alive


In order to ping an entire network, such as Class C is as follows: 

  fping –g 192.168.1.0/24

OR if you prefer the lengthy version: 

  fping –g 192.168.1.0 192.168.1.255


References

  1. "fping free download". Freedownloadscenter.com.2002.http://www.freedownloadcenter.com/Network_and_Internet/Misc_Networking_Tools/Fping.html. (12 May 2009).
  2. "fping". Filewatcher.com.2009. http://dir.filewatcher.com/d/OpenBSD/3.4/hppa/fping-2.2b1.tgz.117192.html. (12 May 2009).
  3. "fping". Filewatcher.com.2009. http://dir.filewatcher.com/d/OpenBSD/3.4/hppa/fping-2.2b1.tgz.117192.html. (12 May 2009).
  4. "fping". Filewatcher.com.2009. http://dir.filewatcher.com/d/OpenBSD/3.4/hppa/fping-2.2b1.tgz.117192.html. (12 May 2009).
  5. Gite, vivek. "Testing Connectivity with fping and send mail if any hosts are unreachable." cyberciti.biz. 2009. http://www.cyberciti.biz/tips/linux-unix-profiling-network-connectivity-with-fping.html (12 May 2009).
  6. Gite, vivek. "Testing Connectivity with fping and send mail if any hosts are unreachable." cyberciti.biz. 2009. http://www.cyberciti.biz/tips/linux-unix-profiling-network-connectivity-with-fping.html (12 May 2009).
  7. "fping". mkssoftware.com.2009. http://www.mkssoftware.com/docs/man1/fping.1.asp (12 May 2009).


External links


See also

  • dping, AIX command included in IBM Cluster Systems Management for sending ICMP packets to multiple hosts in parallel
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