From: Robert Slaski (robin@atm.com.pl)
Date: Fri Dec 20 2002 - 22:28:39 GMT-3
dahlene@aros.net wrote:
> Can someone give me a scenario where you would want to use the port block
> unicast and multicast commands. I know that it blocks unknown unicast and
> multicast packets but am having a difficult time in coming up with a time when
> I would want to use it.
For security reasons. Just consider you have networking equipment
sending UDP datagrams like syslog or SNMP traps to a logging host that
goes down or is just very silent. In five minutes by default everybody
will see your logs. You can prevent this with port blocking.
mikrobi,
-- .
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