From: Shine Joseph (shinepjoseph@iprimus.com.au)
Date: Sun Mar 30 2008 - 08:09:38 ART
Mike,
Write them in binary.
226 - 1110 0010
12 - 0000 1100
The possible combinations would be:
1110 0010 - 226
1110 0110 - 230
1110 1010 - 234
1110 1110 - 238
So by having a mask of 12 you are are matching only above 4 addresses.
HTH,
Shine
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of Mike
Haddad
Sent: Sunday, 30 March 2008 5:55 PM
To: ccielab@groupstudy.com
Subject: Multicast Grouping
Hello,
I still don't understand why the below ACL can't be grouped:
interface Loopback0
ip pim sparse-dense-mode
!
ip pim send-rp-announce Loopback0 scope 16 group-list 50
!
access-list 50 permit 226.0.0.0 1.255.255.255
access-list 50 permit 228.0.0.0 3.255.255.255
access-list 50 permit 232.0.0.0 3.255.255.255
access-list 50 permit 236.0.0.0 1.255.255.255
access-list 50 permit 238.0.0.0 0.255.255.255
Why can't we group them as:
access-list 50 permit 226.0.0.0 12.255.255.255
Thanks for the clarification,
This archive was generated by hypermail 2.1.4 : Tue Apr 01 2008 - 07:53:54 ART