Re: wild card mask for mulitcast

my acl's are different than yours ..

i have

permit 224.0.0.0 7.255.255.255.0
permit 224.0.0.0 15.255.255.255.0

even though the acl's (wild card masks ) are different , then yours
...it is giving /4 for first line ...and /5 for second line.

it seems ios has hard coded ..those value ...can you try with
3.255.255.255 or 7.255.255.255 or 15.255.255.255 ..and confirm ..

On Sun, Mar 17, 2013 at 10:22 PM, Tony Singh <mothafungla_at_gmail.com> wrote:

> 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
> > >> >>> >
> > >> >>> >
> > >>
> _______________________________________________________________________
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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/>* <
> > >> 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/>* <
> > >> 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
> >
> >
> > Blogs and organic groups at http://www.ccie.net
> >
> > _______________________________________________________________________
> > Subscription information may be found at:
> > http://www.groupstudy.com/list/CCIELab.html

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Received on Mon Mar 18 2013 - 00:22:38 ART