Re: ICMP ECHO_REQUEST on BROADCAST--HOWTO Filter!
Mfm (mfm@FRII.COM)
Tue, 29 Jul 1997 09:39:52 -0600
>
> And a final note: there are very few applications which depend
> on the routing of broadcast packets. You may know of one such
> application; if it's a popular one that you think lots of people are
> using, speak up. So you should feel safe in blocking broadcast traffic
> in your network. Popular applications which depend on *non*-routed
> broadcast traffic include RIP and netbios (Microsoft's networking
> protocol). Putting filter access-lists on your interfaces should
> not interfere with non-routed broadcast traffic.
>
I know of one such program. In order to print to HP JetDirect printers,
you need either the JetAdmin program, or the drivers to go with it.
Either way, when you print to a printer that is not on the local subnet,
you are routeing broadcast packets. And yes, I found this out the hard
way.
Jake
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