Re: wild card mask for mulitcast

Imran

This is for group-to-auto-rp-announce with explicit acl's if im not mistaken...

R1 RP for 224.0.0.0/4

ip pim send-rp-announce Loopback0 scope 16 group-list 1
access-list 1 permit 224.0.0.0 3.255.255.255

R2 RP for 224.0.0.0/5

ip pim send-rp-announce Loopback0 scope 16 group-list 1
access-list 1 permit 224.0.0.0 7.255.255.255

Group(s) 224.0.0.0/4
RP 150.1.4.4 (?), v2v1
Info source: 150.1.5.5 (?), elected via Auto-RP
Uptime: 00:00:41, expires: 00:02:17

Group(s) 224.0.0.0/5
RP 150.1.2.2 (?), v2v1
Info source: 150.1.5.5 (?), elected via Auto-RP
Uptime: 00:00:43, expires: 00:02:16

do you have any acl's in your config?

BR

Tony

On 17 March 2013 18:32, Imran Ali <immrccie_at_gmail.com> wrote:
>
> thansk narbik,
>
> but what does /4 or /5 mean , /24 is making sense but not /4
> can you please clariry
>
> On Sun, Mar 17, 2013 at 9:28 PM, Narbik Kocharians <narbikk_at_gmail.com>wrote:
>
> > Imran,
> >
> > It is identifying the range, for example local scope has a range of
> > 224.0.0.0/24, meaning that 224.0.0.0 - 224.0.0.255.
> >
> >
> > On Sun, Mar 17, 2013 at 11:26 AM, Imran Ali <immrccie_at_gmail.com> wrote:
> >
> >> Narbik,
> >> as i the output in my first mail , i see
> >> 224.0.0.0/4
> >> 224.0.0.0/5
> >>
> >> etc .....i recalled that multicast does not have subnet mask.
> >> then what does number after slash is suggesting ?
> >>
> >> is it a wild card ?
> >>
> >>
> >> On 3/17/13, Narbik Kocharians <narbikk_at_gmail.com> wrote:
> >> > I am not in front of a rack but i think last i checked it was two,
> >> please
> >> > wire shark it to verify.
> >> >
> >> > On Sun, Mar 17, 2013 at 11:03 AM, Narbik Kocharians
> >> > <narbikk_at_gmail.com>wrote:
> >> >
> >> >> Guys, the TTL for Eigrp and RIP is 2.
> >> >>
> >> >> On Sun, Mar 17, 2013 at 10:49 AM, Tony Singh
> >> >> <mothafungla_at_gmail.com>wrote:
> >> >>
> >> >>> There's a good IANA description here
> >> >>>
> >> >>>
> >> >>>
> >> http://www.iana.org/assignments/multicast-addresses/multicast-addresses.xml
> >> >>>
> >> >>> 224.0.0.0 - 225.0.0.255 is link local with TTL of 1
> >> >>>
> >> >>> --
> >> >>> BR
> >> >>>
> >> >>> Tony
> >> >>>
> >> >>> Sent from my iPhone on 3
> >> >>>
> >> >>> On 17 Mar 2013, at 17:24, Imran Ali <immrccie_at_gmail.com> wrote:
> >> >>>
> >> >>> > *
> >> >>> > Hi all,
> >> >>> >
> >> >>> > i am not sure how calculations are made for wildcard mask for
> >> >>> > multicast
> >> >>> > gorups ?
> >> >>> >
> >> >>> > what ranges are covered on /4 or /5 Any link ?
> >> >>> >
> >> >>> >
> >> >>> > Rack1R3#show ip pim rp mapping
> >> >>> > *
> >> >>> >
> >> >>> > PIM Group-to-RP Mappings
> >> >>> >
> >> >>> > *Group(s) 224.0.0.0/5*
> >> >>> >
> >> >>> > RP 150.1.8.8 (?), v2v1
> >> >>> >
> >> >>> > Info source: 150.1.1.1 (?), elected via Auto-RP
> >> >>> >
> >> >>> > Uptime: 00:00:23, expires: 00:02:33
> >> >>> >
> >> >>> > *Group(s) 224.0.0.0/4*
> >> >>> >
> >> >>> >
> >> >>> > Blogs and organic groups at http://www.ccie.net
> >> >>> >
> >> >>> >
> >> _______________________________________________________________________
> >> >>> > Subscription information may be found at:
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> >> >>>
> >> >>>
> >> >>>
> >> >>>
> >> >>>
> >> >>>
> >> >>>
> >> >>>
> >> >>
> >> >>
> >> >> --
> >> >> *Narbik Kocharians
> >> >> *CCSI#30832, CCIE# 12410 (R&S, SP, Security)
> >> >> *www.MicronicsTraining.com <http://www.micronicstraining.com/>* <
> >> http://www.micronicstraining.com/>
> >> >> Sr. Technical Instructor
> >> >> YES! We take Cisco Learning Credits!
> >> >> A Cisco Learning Partner
> >> >>
> >> >
> >> >
> >> >
> >> > --
> >> > *Narbik Kocharians
> >> > *CCSI#30832, CCIE# 12410 (R&S, SP, Security)
> >> > *www.MicronicsTraining.com <http://www.micronicstraining.com/>* <
> >> http://www.micronicstraining.com/>
> >> > Sr. Technical Instructor
> >> > YES! We take Cisco Learning Credits!
> >> > A Cisco Learning Partner
> >> >
> >>
> >
> >
> >
> > --
> > *Narbik Kocharians
> > *
> > CCSI#30832, CCIE# 12410 (R&S, SP, Security)
> > *www.MicronicsTraining.com* <http://www.micronicstraining.com/>
> > Sr. Technical Instructor
> > YES! We take Cisco Learning Credits!
> > A Cisco Learning Partner
>
>
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>
> _______________________________________________________________________
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Received on Sun Mar 17 2013 - 19:22:11 ART