multiping

Usage:

   usage: multiping [-Rdfnqrtv] [-c count] [-i wait] [-l preload]
            [-p pattern] [-s packetsize] host

       Options:
       R: ICMP record route
       d: set SO_DEBUG socket option
       f: 'flood' mode
       n: force addresses to be displayed in numeric format
       r: set SO_DONTROUTE socket option
       t: show results in tabular form
       v: verbose mode for ICMP stuff

Description:

Multiping runs pings in parallel which permits you to ping lots of hosts quickly. I wrote a program using Net::Ping to try to how bad a simple-minded approach was. With .025s between pings in my programs and 1s in multiping, my program took 17 minutes and multiping took 37 seconds. Maybe someone will not be able to get multiping going and will re-write it in perl. Not me. I'd be happy to include it if some-one wants to send me a copy.