From: chrisa (chris_atkins@blueyonder.co.uk)
Date: Thu Mar 04 2004 - 11:33:14 GMT-3
Sorry does it not or am I misunderstanding ??
Router C-Last Hop Router Configuration
interface ethernet 1
ip directed-broadcast
ip multicast helper-map 224.5.5.5 178.21.34.255 135
ip pim dense-mode
!
access-list 135 permit udp any any 4000
access-list 135 deny udp any any
ip forward-protocol udp 4000
----- Original Message -----
From: "William Chen" <kwchen@netvigator.com>
To: <braet_kamiel@nl.ibm.com>; <ccielab@groupstudy.com>
Sent: Thursday, March 04, 2004 1:47 PM
Subject: Re: ip multicast helper-map - ip directed broadcast
> Hi,
>
> You are right. There is a mistake of this example in DocCD. I have done
a
> lab in DoiT workbook from netmasterclass (www.netmasterclass.com), which
> gives a very good pratice of this feature.
>
> Moreover, in order to generate UDP packets for testing without any
> traffic generator, you can use extended traceroute.
>
> Best Regards,
> William Chen
>
> ----- Original Message -----
> From: <braet_kamiel@nl.ibm.com>
> To: <ccielab@groupstudy.com>
> Sent: Thursday, March 04, 2004 5:29 PM
> Subject: ip multicast helper-map - ip directed broadcast
>
>
> > Looking at the "ip multicast helper" example on the Doc CD reachable
via:
> >
> >
>
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122cgcr/fipr_c/ipcpt3/1cfmulti.htm#1003511
> >
> > I don't understand how the directed broadcast, created from the
multicast
> stream at the incoming interface of the last hop router, is sent out on
the
> outgoing interface as physical broadcast using default interface
> configuration.
> >
> > Because this interface will just drop the directed broadcast arriving at
> the interface. In order to prevent this from happening the command "ip
> directed broadcast should" be configured on the outgoing interface of the
> last hop router.
> >
> > Since this example doesn't say anything about that, I'm still wondering
if
> this is correct, could somebody confirm this?
> >
> > _______________________________________________________________________
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