RE: ip multicast helper-map - position of ip directed-broadcast

From: hin ccie (hinccie@yahoo.com)
Date: Sun Aug 14 2005 - 00:02:00 GMT-3

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Thanks Brian,

I dont't have chance to lab it up. :(

I just wonder that the doc-cd could be incorrect.
Is somebody from Cisco aware about it ?

best regards
Hin

Brian McGahan <bmcgahan@internetworkexpert.com> wrote:
Yes, the documentation is incorrect. Try it out and you will see. You can use the Service Assurance Agent (rtr) to generate a broadcast UDP for testing it. This is also demonstrated in the IEWB-RS Volume I Solutions Guide if you have access to it.

HTH,

Brian McGahan, CCIE #8593
bmcgahan@internetworkexpert.com

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________________________________________
From: hin ccie [mailto:hinccie@yahoo.com]
Sent: Saturday, August 13, 2005 2:12 AM
To: Brian McGahan; ccielab@groupstudy.com
Subject: RE: ip multicast helper-map - position of ip directed-broadcast command ??

Thanks Brian,

I agree with you that it should be put on the bcast domain interface

Well, it is different according to

http://127.0.0.1:8089/cc/td/doc/product/software/ios122/122cgcr/fipr_c/ipcpt3/1cfmulti.htm#wp1003511

that the ip directed-command is put on s1/1 R2

any thought ?
hin

Brian McGahan wrote:
Hino,

It need to go on E1/1 of R2. This is where the directed
broadcast is being sent to

HTH,

Brian McGahan, CCIE #8593
bmcgahan@internetworkexpert.com

> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf
Of
> hin ccie
> Sent: Friday, August 12, 2005 3:10 AM
> To: ccielab@groupstudy.com
> Subject: ip multicast helper-map - position of ip directed-broadcast
> command ??
>
> Guys,
>
> I'm rather confused about the position of ip directed-broadcast
> on the ip multicast helper-map configuration.
>
> I know that ip multicast helper-map config is put on the incoming
router
> interface
> of mcast traffic from source to receiver.
>
> Let's say
>
> source -- eth0/0 - R1 - s0/0 ---(mcast area) ---s1/1- R2- eth 1/1 ---
> receiver
>
> so it is broadcast -> mcast -> broadcast flow
>
> Where should I put the ip directed-broadcast command ?
> 1. on eth0/0- R1 (within broadcast area)
> 2. on s1/1 - R2 (within mcast domain - but it is the incoming
interface
> of mcast traffic) ??
> OR
> on eth 1/1 - R2 (within broadcast area) ??
>
> Please advise any help
>
> TIA
> hino
>
>
> ---------------------------------
> Start your day with Yahoo! - make it your home page
>
>

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