Multicast admin boundaries

From: ccie2be (ccie2be@nyc.rr.com)
Date: Tue Aug 03 2004 - 11:59:00 GMT-3


Hi guys,

Given this acl

access-list 10 deny 239.192.0.0 0.0.255.255
access-list 10 permit any

Now, consider the 2 configs below

int s0
ip multicast boundary 10

versus

int s0
access-group 10 out

What's the difference? The idea is to prevent multicast packets from
traveling too far, but won't either command accomplish the same thing. So,
why do we need a "special" command, ip multicast boundary to simply apply an
acl to an interface?

Thanks, Tim



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