Re: /128 mcast group in IPv6 multicast

Hi,

Yeah I get the same result. When I checked the web it looks like
others have posed this question as well.

-Rich

On Fri, Feb 19, 2010 at 5:29 AM, Gavin Schokman
<Gavin.Schokman_at_nscglobal.com> wrote:
> So no-one able to answer this one?
>
> Cheers,
> Gavin
>
>
> -----Original Message-----
> From: nobody_at_groupstudy.com [mailto:nobody_at_groupstudy.com] On Behalf Of
> Gavin Schokman
> Sent: 18 February 2010 11:58
> To: ccie_ka_at_gmx.de; Gavin Schokman; ccielab_at_groupstudy.com
> Subject: RE: /128 mcast group in IPv6 multicast
>
> Unfortunately, "ipv6 mld access-group" will only filter out incoming MLD
> messages, not configure the router to act as an RP for the single group
> - which is what my question is.
>
> This one is curly... There doesn't seem to be any references on the
> internet regarding configuring RP for a single mcast group.
>
> Kind regards,
> Gavin
>
>
>
>
>
> -----Original Message-----
> From: nobody_at_groupstudy.com [mailto:nobody_at_groupstudy.com] On Behalf Of
> ccie_ka_at_gmx.de
> Sent: 18 February 2010 06:33
> To: Gavin Schokman; ccielab_at_groupstudy.com
> Subject: Re: /128 mcast group in IPv6 multicast
>
> hi,
>
> you can configure it on the interface of the RP
>
> Assume the RP is Rx :
> interface fa0/1
> ipv6 mld access-group ACL-for-IPv6
>
> ipv6 access-list ACL-for-IPv6
> permit ipv6 any host x::x:x
>
> Dennis
> -------- Original-Nachricht --------
>> Datum: Thu, 18 Feb 2010 00:52:17 -0000
>> Von: "Gavin Schokman" <g_schokman_at_yahoo.com.au>
>> An: ccielab_at_groupstudy.com
>> Betreff: /128 mcast group in IPv6 multicast
>
>> Hi GS'ers,
>>
>> Been having some trouble with IPv6 multicast and can't seem to find
>> the answer anywhere.
>>
>> How does one configure a router to be RP for a single mcast group,
>> i.e. a /128?
>>
>> I've tried static-rp & BSR, but I get errors and it doesn't work
>>
>> ### using static-RP
>>
>> RSRack8R5(config)# ipv6 access-list RP-LIST
>> RSRack8R5(config-ipv6-acl)# permit any host FF05:1:1:1::1
>>
>> RSRack8R5(config)# ipv6 pim rp-address 2001:150:8:5::5 RP-LIST
>> %Error: Group prefix must be less than 128, skipping FF05:1:1:1::1/128
>>
>> ! by entering the command again, the IOS will not report an error,
>> however the group is silently ignored (witnessed by the group not
>> being shown in "show ipv6 pim groups")
>>
>>
>> ### using BSR
>>
>> ! same ACL definition for RP-LIST
>>
>> ! add "debug ipv6 pim bsr"
>>
>> RSRack8R5(config)# ipv6 pim bsr candidate rp 2001:150:8:5::5
>> group-list RP-LIST *Mar 1 03:39:54.959: IPv6 BSR: Building C-RP Adv
>> for 2001:150:8:5::5, priority 192, holdtime 150 *Mar 1 03:39:54.963:
>> IPv6 BSR: Ignoring invalid prefix FF05:1:1:1::1/128
>> -
>> Not added to C-RP Adv
>>
>>
>> This one's got me heavily stuck, so any help will be greatly
> appreciated.
>>
>> Cheers,
>> Gavin
>>
>>
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Received on Fri Feb 19 2010 - 19:11:02 ART