Re: Pinging an entire Class B

Gary Worthy (gworthy@n-link.com)
Thu, 11 Jul 1996 01:03:36 -0500

At 10:47 PM 7/10/96 -0400, you wrote:
>I need to ping an entire class B in order to load my routers arp cache
>with all mac-ip pairs. I am using Solaris 2.5 and fping will not
>compile for me. ntping will doit but i cannot figure out the
>correct syntax to do say an entire class C at once. I do not care
>about the results. I just want the sytem in the arp cache.

Your router will pick them all up eventually. But local machines will
respond to "arp -a", everyone up will answer. Arp -a will not pass your
router though so if you are collecting mac's from across wan connections it
won't work.