ip pim filter - wildcard mask

From: ISolveSystems (support@isolvesystems.com)
Date: Tue Aug 07 2007 - 11:11:11 ART

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Hi Expert,
The Task asks to match all multicast groups with even numbered first octet
to R1.

The answer show that I need one access per even octet. May I know why do I
need specific permit access list below instead of one access list
(access-list 10 permit 224.0.0.0)?

permit 224.0.0.0 0.255.255.255
permit 226.0.0.0 0.255.255.255
permit 228.0.0.0 0.255.255.255
permit 230.0.0.0 0.255.255.255
permit 232.0.0.0 0.255.255.255
permit 234.0.0.0 0.255.255.255
permit 236.0.0.0 0.255.255.255
permit 238.0.0.0 0.255.255.255

Thanks.

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