Re: wild card mask for mulitcast

http://www.cisco.com/en/US/tech/tk828/technologies_white_paper09186a00802d4643.shtml

Local Network Control Block

The range of 224.0.0.0 through 224.0.0.255 is considered the Local
Network Control Blockmore commonly known as the Link-Local Blockand
is used by network protocols on a local subnet segment. Packets with
an address in this range are local in scope and always should be
transmitted with a Time To Live (TTL) of 1 so that they go no farther
than the local subnet.

Table 2 is a list of the Link-Local multicast addresses taken directly
from the IANA database at the time this paper was written. The table
lists the reserved multicast addresses, the network protocol function
to which it has been assigned, and the person who requested the
address or the RFC associated with the protocol.

Table 2 Local Network Control Block

Address
Usage
Reference
224.0.0.1

All Hosts

[RFC 1112, JBP]

224.0.0.2

All Multicast Rrouters

[IANA]

224.0.0.3

Unassigned

[IANA]

224.0.0.4

DVMRP Routers

[RFC 1075, JBP]

224.0.0.5

OSPF Routers

[RFC 1583, JXM1]

224.0.0.6

OSPF Designated Rrouters

[RFC 1583, JXM1]

224.0.0.7

ST Routers

[RFC 1190, KS14]

224.0.0.8

ST Hosts

[RFC 1190, KS14]

224.0.0.9

RIP2 Routers

[RFC 1723, SM11]

224.0.0.10

IGRP Routers

[Farinacci]

224.0.0.11

Mobile-Agents

[Bill Simpson]

224.0.0.12

DHCP Server/Relay Agent

[RFC1884]

224.0.0.13

All PIM Routers

[Farinacci]

224.0.0.14

RSVP-ENCAPSULATION

[Braden]

224.0.0.15

all-cbt-routers

[Ballardie]

224.0.0.16

designated-sbm

[Baker]

224.0.0.17

all-sbms

[Baker]

224.0.0.18

VRRP

[Hinden]

224.0.0.19

IPAllL1Iss

[Przygienda]

224.0.0.20

IPAllL2Iss

[Przygienda]

224.0.0.21

IPAllIntermediate Systems

[Przygienda]

224.0.0.22

IGMP

[Deering]

224.0.0.23

GLOBECAST-ID

[Scannell]

224.0.0.24

Unassigned

[IANA]

224.0.0.25

router-to-switch

[Wu]

224.0.0.26

Unassigned

[IANA]

224.0.0.27

Al MPP Hello

[Martinicky]

224.0.0.28

ETC Control

[Polishinski]

224.0.0.29

GE-FANUC

[Wacey]

224.0.0.30

indigo-vhdp

[Caughie]

224.0.0.31

Shinbroadband

[Kittivatcharapong]

224.0.0.32

Digistar

[Kerkan]

224.0.0.33

ff-system-management

[Glanzer]

224.0.0.34

Pt2-discover

[Kammerlander]

224.0.0.35

DXCLUSTER

[Koopman]

224.0.0.36

DTCP Announcement

[Cipiere]

224.0.0.37-

224.0.0.68

Zeroconfaddr

[Guttman]

224.0.0.69-

224.0.0.100

Unassigned

[IANA]

224.0.0.101

cisco-nhap

[Bakke]

224.0.0.102

HSRP

[Wilson]

224.0.0.103

MDAP

[Deleu]

224.0.0.104

Nokia MC CH

[Kalhour]

224.0.0.105

ff-lr-address

[Glanzer]

224.0.0.106-

224.0.0.250

Unassigned

[IANA]

224.0.0.251

MDNS

[Cheshire]

224.0.0.252-

224.0.0.255

Unassigned

[IANA]

Marc Edwards
CCIE #38259

On Sun, Mar 17, 2013 at 11:08 AM, 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/>
>> 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
>
>
> 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 Sun Mar 17 2013 - 11:35:52 ART