From: Scott Morris (swm@emanon.com)
Date: Tue Jun 13 2006 - 23:00:14 ART
It supports some really old devices.
Typically, the all-zeros address in ANY network was the "network id" and the
all-ones address was the "broadcast id". Some flavors of unix (like BSD,
and likely some other things I'm forgetting) would use the all-zeros address
as the broadcast and mix things up a bit.
Cisco supported that change. Some people use this in order to avoid Smurf
attacks (just all your devices need to support the change).
So you don't specify the subnet. It's an IP within the network you already
have defined.
HTH,
Scott Morris, CCIE4 (R&S/ISP-Dial/Security/Service Provider) #4713, JNCIE
#153, CISSP, et al.
CCSI/JNCI
IPExpert CCIE Program Manager
IPExpert Sr. Technical Instructor
smorris@ipexpert.com
http://www.ipexpert.com
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
Maximus
Sent: Tuesday, June 13, 2006 7:35 PM
To: Cisco certification
Subject: What does Ip broadcast address do
hie group,
can i specify a broadcast address to subnet 150.1.2.0/14 by using ip
broadcast-address, i mean i have to send a broadcast to that address
this i sthe comman i found...
#ip broadcast-address 150.1.2.0
how do i specify the subnet ?
-- regards,Maximus
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