From: Nick (seajay76@nate.com)
Date: Thu Jan 19 2006 - 03:00:17 GMT-3
Hi!!
Quoted from the DOC
## Router A-First Hop Router Configuration
interface ethernet 0
ip directed-broadcast --> You don't need this since the broadcast traffic is routed just like unicast traffic.
ip multicast helper-map broadcast 224.5.5.5 120
ip pim dense-mode
!
access-list 120 permit any any udp 4000
access-list 120 deny any any udp --> You don't need this since the ACL has an impmlicit deny at the end.
ip forward-protocol udp 4000
## Router C-Last Hop Router Configuration
interface ethernet 1 --> If you see Fig.13 this is the input interface.
ip directed-broadcast --> You don't need this on this interface.
ip multicast helper-map 224.5.5.5 178.21.34.255 135
ip pim dense-mode
!
access-list 135 permit any any udp 4000
access-list 135 deny any any udp --> You don't this either.
ip forward-protocol udp 4000
PLUS!!
interface ethernet 0
description LAN
ip address 178.21.34.1 255.255.255.0
ip directed-broadcast --> You need this for the previously translated directed broadcast to be exploded on to the LAN.
HTH
Nick
----- Original Message -----
From: "Anwar Chalamannil" <anwar.chalamannil@gmail.com>
To: <ccielab@groupstudy.com>
Sent: Thursday, January 19, 2006 2:35 PM
Subject: IE LAB 8 vol1 -Multicast helper map Vs DOC CD
> Hello
>
> In IE lab vol1 lab8 task 5.5
> In the solution
> Helper map is configured on input interfaces of both first hope and and
> last hope router .
>
> But in doc CD it looks like helper map is configured on input interface of
> first hop router and output interface of last hop router
>
> http://www.cisco.com/univercd/cc/td/doc/product/software/ios124/124cg/himc_c/
> chap10/mcbcigmp.htm#wp1084257
>
> What would be the right solution ?
> Configuring helper map on input interface of last hop or on output interface
> of last hop ?
>
> Thanks
> Anwar
>
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