From: Radoslav Vasilev (deckland@gmail.com)
Date: Tue Jul 25 2006 - 08:00:19 ART
Hi Nick,
What you've done is a negative announcement for the administrativelly scoped
range 239/8.
This happen when you have a deny statement in the standard ACL you use on
the RP.
I think the "negative prefix" feauture for Auto-RP was addes somewhere in
12.0
Cheers,
Rado
On 7/25/06, Nick Davey <nicky.davey@gmail.com> wrote:
>
> Hi all,
>
> I configured autorp as follows:
>
> ip pim send-rp-announce Loopback0 scope 16 group-list MCast
>
> ip access-list standard MCast
> deny 239.0.0.0 0.255.255.255
> permit 232.0.0.0 7.255.255.255
>
>
> When i do a show ip pim rp mapping i see the following
>
> Group(s) 232.0.0.0/5
> RP 150.1.6.6 (?), v2v1
> Info source: 150.1.6.6 (?), elected via Auto-RP
> Uptime: 00:32:43, expires: 00:02:13
> Group(s) (-)239.0.0.0/8
> RP 150.1.6.6 (?), v2v1
> Info source: 150.1.6.6 (?), elected via Auto-RP
> Uptime: 00:32:43, expires: 00:02:16
>
>
> Why is group 239.0.0.0 assigned an RP when it is denied in the ACL?
>
> And what does the (-) before 239.0.0.0/8 mean?
>
> Hope someone can answer this
>
> Regards,
>
> Nick
>
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