From: Niche (jackyliu419@gmail.com)
Date: Sun Nov 27 2005 - 23:41:52 GMT-3
I was just wondering this topic has been pointed out by someone else
not long ago. I remember Chris has replied that he has issued a ticket
about this.
Best Regards,
Jacky
On 11/28/05, Cisco Nuts <cisconuts@hotmail.com> wrote:
>
>
>
>
> On 11/27/05, Cisco Nuts <cisconuts@hotmail.com> wrote:
> >
> >
> >
> >
> > Glad to!!
> >
> > If you look at this example in the Doc Cd:
> >
> > 1. ip directed-broadcast is not needed on the first hop router, Router A
> e0 - you are just converting a broadcast to a multicast and thus this cmd.
> is not needed.
> >
> > 2. The multicast helper map cmd. needs to be configured on Ethernet 1 of
> the last hop router, Router C NOT on Ethernet 2 intf - because Ethernet 1
> intf. is the receiving intf. of the last hop router and this is where the
> multicast packet needs to be converted back to broadcast.
> >
> > 3. ip directed-broadcast cmd. on Ethernet2 intf. on the last hop router,
> Router C does make sense and it is correct - because ip directed-broadcast
> is off by default and to correctly forward te multicast packets to the
> receiving hosts, a subnet broadcast is required on the intf. connected to
> these hosts since we do not know which hosts in particular require the feed.
> >
> > Hope this helps.
> >
> > BTW: Lab 8 of InternetworkExpert explains this in detail.
> >
> >
> >
> >
>
>
> ________________________________
>
> From: Niche <jackyliu419@gmail.com>
> To: Cisco Nuts <cisconuts@hotmail.com>
> Subject: Re: IP Multicast Helper Map Example - Wrong!!
> Date: Mon, 28 Nov 2005 09:09:47 +0800
>
> >Hi there,
> >
> >Would you mind posting the configuration or the link here? I just
> >wonder which part is wrong.
> >
> >Best Regards
> >Jacky
> >
> >On 11/28/05, Cisco Nuts <cisconuts@hotmail.com> wrote:
> > > Hello:
> > >
> > > Is there a way we can get Cisco to change the Multicast Helper map
> example
> > > in the Doc CD?
> > >
> > > It is obviously wrong and can definitely lead one to "mis-learn" about
> this
> > > feature.
> > >
> > > I have been seeing this for a couple of years now ;->
> > >
> > > Thanks !!!
> > >
> > >
> _______________________________________________________________________
> > > Subscription information may be found at:
> > > http://www.groupstudy.com/list/CCIELab.html
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