From: Digital Yemeni (digital-yemeni@hotmail.com)
Date: Wed Mar 07 2007 - 00:37:00 ART
>ip access-list 75 deny 239.0.0.0 0.255.255.255
>
>ip access-list 75 permit 224.0.0.0 15.255.255.255
Isn't the octet 224 when wildcarded with 15 bits has the range of 224-239 ?
That means your earlier deny gets permitted again in the second ACL!
Best Regards,
Digital
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>From: "Keith Bizzell" <mkbcoolman@gmail.com>
>Reply-To: "Keith Bizzell" <mkbcoolman@gmail.com>
>To: "Cisco certification" <ccielab@groupstudy.com>
>Subject: INE 5.4 Multicast filtering
>Date: Tue, 6 Mar 2007 20:59:01 -0600
>
>This section calls for filtering the admin range between R3/SW2, which are
>pim neighors on R3s Fa0/0. This should call for a simple access-list,
>right? Here's my output on SW2 prior to filtering:
>
>Rack1SW2#show ip pim nei
>PIM Neighbor Table
>Mode: B - Bidir Capable, DR - Designated Router, N - Default DR Priority,
> S - State Refresh Capable
>Neighbor Interface Uptime/Expires Ver DR
>Address
>Prio/Mode
>162.1.38.3 Vlan38 04:16:53/00:01:30 v2 1 / S
>
>Rack1SW2#show ip pim rp map
>PIM Group-to-RP Mappings
>
>Group(s) 226.0.0.0/7
> RP 150.1.5.5 (?), v2v1
> Info source: 150.1.1.1 (?), elected via Auto-RP
> Uptime: 00:05:47, expires: 00:00:10
>Group(s) 228.0.0.0/6
> RP 150.1.5.5 (?), v2v1
> Info source: 150.1.1.1 (?), elected via Auto-RP
> Uptime: 00:02:49, expires: 00:00:05
>Group(s) 232.0.0.0/6
> RP 150.1.5.5 (?), v2v1
> Info source: 150.1.1.1 (?), elected via Auto-RP
> Uptime: 00:05:47, expires: 00:00:09
>Group(s) 236.0.0.0/7
> RP 150.1.5.5 (?), v2v1
> Info source: 150.1.1.1 (?), elected via Auto-RP
> Uptime: 00:05:47, expires: 00:00:09
>Group(s) 238.0.0.0/8
> RP 150.1.5.5 (?), v2v1
> Info source: 150.1.1.1 (?), elected via Auto-RP
> Uptime: 00:05:47, expires: 00:00:09
>Group(s) 239.0.0.0/8
> RP 150.1.3.3 (?), v2v1
> Info source: 150.1.1.1 (?), elected via Auto-RP
> Uptime: 00:05:47, expires: 00:00:06
>
>I performed the following configuration on R3:
>
>int fa0/0
>
>ip multicast boundry 75
>
>ip access-list 75 deny 239.0.0.0 0.255.255.255
>
>ip access-list 75 permit 224.0.0.0 15.255.255.255
>
>When I apply the boundry, SW2 has no RP mappings. I've tried every
>combination I can think of on the access list, but no luck. Any ideas?
>
>Keith
>
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