Re: ip pim filter - wildcard mask

From: ISolveSystems (support@isolvesystems.com)
Date: Tue Aug 07 2007 - 11:52:12 ART

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Thanks Brian. Below is the debug output. Can you explain why 224.0.0.0/5 is
the only announce entry? I am using ur workbook....

This is on R1 and R3 "access-list 10 permit 224.0.0.0 14.255.255.255"..

*debug ip pim auto on R1*
*Aug 7 22:16:31.471: Auto-RP(0): Build RP-Announce for 150.1.1.1, PIMv2/v1,
ttl 16, ht 181
*Aug 7 22:16:31.471: Auto-RP(0): Build announce entry for (224.0.0.0/5)

*debug ip pim auto on R3*
*Aug 7 15:22:55.271: Auto-RP(0): Received RP-announce, from 150.1.1.1,
RP_cnt 1, ht 181
*Aug 7 15:22:55.271: Auto-RP(0): Update (224.0.0.0/5, RP:150.1.1.1), PIMv2
v1
*Aug 7 15:22:55.271: Auto-RP(0): Received RP-announce, from 150.1.1.1,
RP_cnt 1, ht 181
*Aug 7 15:22:55.271: Auto-RP(0): Update (224.0.0.0/5, RP:150.1.1.1), PIMv2
v1

On 8/7/07, Brian Dennis <bdennis@internetworkexpert.com> wrote:
>
> The best answer is to lab both up and see the results using the show ip
> pim rp mapping and debug ip pim auto-rp commands.
>
>
> Brian Dennis, CCIE4 #2210 (R&S/ISP-Dial/Security/SP)
> bdennis@internetworkexpert.com
>
>
> Internetwork Expert, Inc.
> http://www.InternetworkExpert.com <http://www.internetworkexpert.com/>
> Toll Free: 877-224-8987
> Direct: 775-745-6404 (Outside the US and Canada)
>
>
>
> On Aug 7, 2007, at 7:11 AM, ISolveSystems wrote:
>
> 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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