RE: helper map

From: ccie19226 (ccie19226@googlemail.com)
Date: Wed Dec 05 2007 - 06:07:45 ART

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In the testing I did during my lab prep - I didn't configure the directed
broadcast on R2 serial - only R2 ethernet - and things worked fine.

I have seen variations on the configuration from various sources on the net
but the example on the doccd did the trick. The only exception being
manipulating the ttl on the helper-map to make things work across many
multicast routers.

-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
Christian Thomsen
Sent: Wednesday, 5 December 2007 07:38
To: Asim Zafar; Dan C
Cc: Cisco certification
Subject: Re: helper map

Hi,

R1 is going to map multicast to broadcast.

R2 Serial interface converts it back (directed broadcast on ethernets and
Serial R2).

=> seeen on networkers 2000. ftp://ftpeng.cisco.com/ipmulticast.html
[ftp://ftpeng.cisco.com/ipmulticast.html]

Cheers

Christian

*Von:* "Dan C" <CDAN2154@GMAIL.COM>
*Gesendet:* 05.12.07 03:25:56
*An:* "Asim Zafar" <ASIM.MZ@GMAIL.COM>
*CC:* "Cisco certification" <CCIELAB@GROUPSTUDY.COM>
*Betreff:* Re: helper map

Hi Asim,

There is a nice example on Doc pages under IP Multicast Helper Example :

http://www.cisco.com/en/US/docs/ios/12_0/np1/configuration/guide/1cmulti.htm
l#wp6877

cheers,
Dan

On Dec 5, 2007 12:10 PM, Asim Zafar <asim.mz@gmail.com> wrote:

> Hi All,
>
>
> I am going through configuration to convert broadcast to multicast,
>
>
>
>
>
R1(ethernet)----------------R1(serial)-----------frame-relay-------------R2(
serail)---------------------R2(ethernet)
>
>
> please let me know where to configure multicast helper-map if the
> applicaiton is behind R1ethernet and users are R2ethernet
> also where we need to configure "ip directed broadcast"
>
> --
> Thanks & Regards,
>
> Asim Zafar
>
> _______________________________________________________________________
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