From: Bit Gossip (bit.gossip@chello.nl)
Date: Sat May 19 2007 - 11:14:27 ART
Hi Antonio,
I don't know what do you mean by allowed; in any case, my experience is that
IOS will translate the access-list with wildcard mask into
prefix/prefix length notation.
This is perfectly fine when the wildcard mask in contiguous, but can create
problem when it is discontinuos
Namely including groups that where not in the original access-list
Thanks,
bit
----- Original Message -----
From: "Antonio Soares" <amsoares@netcabo.pt>
To: "'Cisco certification'" <ccielab@groupstudy.com>
Sent: Thursday, May 10, 2007 2:37 PM
Subject: RE: Multicast - AutoRP/BSR and Discontiguous Wildcard Masks
> Hello group,
>
> Any takers ?
>
> I dind't find any documentation saying that discontiguous wildcard mask
> are/are not supported. If they are supported, i still would like to know
if
> they may applied to Auto-RP, BSR or Static-RP.
>
> Thanks.
> Antonio
>
>
> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
> Antonio Soares
> Sent: quarta-feira, 9 de Maio de 2007 1:29
> To: 'Cisco certification'
> Subject: Multicast - AutoRP/BSR and Discontiguous Wildcard Masks
>
> Dear Group,
>
> When defining Mcast Groups using Auto-RP or BSR are we allowed to use
> discontiguous Wildcard Marks ?
>
> For example, i have this in my lab:
>
> ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
>
> R3:
> !
> ip access-list standard mcast
> permit 225.10.0.0 0.48.255.255
> !
> ip pim send-rp-announce Loopback0 scope 16 group-list mcast
> ip pim send-rp-discovery Loopback0 scope 16
>
> R4:
> !
> ip access-list standard mcast
> permit 226.37.0.0 1.8.255.255
> !
> ip pim send-rp-announce Loopback0 scope 16 group-list mcast
> ip pim send-rp-discovery Loopback0 scope 16
>
> ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
>
> And i see mappings to 225.10.0.0/22 and 226.36.0.0/14 which are different
to
> the ACL's defined:
>
> Rack1R2(tcl)#sh ip pim rp map
> PIM Group-to-RP Mappings
>
> Group(s) 225.10.0.0/22
> RP 150.1.3.3 (?), v2v1
> Info source: 150.1.4.4 (?), elected via Auto-RP
> Uptime: 00:26:21, expires: 00:02:29
>
> Group(s) 226.36.0.0/14
> RP 150.1.4.4 (?), v2v1
> Info source: 150.1.4.4 (?), elected via Auto-RP
> Uptime: 00:23:41, expires: 00:02:30
> Rack1R2(tcl)#
>
> ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
>
> The only option here is to use Static RP ?
>
>
> Thanks.
> Regards,
> Antonio
>
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