From: The Great Ryan (pv.ryan@gmail.com)
Date: Tue Nov 01 2005 - 03:44:06 GMT-3
Hi,
I saw that the CCO document was updated for the MCast Helper example.
However, I tried to lab it up but the client side still can't receive
the broadcast. Is there any thing wrong in my configuration ?
server ip 192.168.1.2 generating 178.21.34.255 packet with UDP port 4000
client ip 178.21.34.1
server-------(e0:192.168.1.254)R1--------R2(e2:192.168.2.254)-------client
R1
interface ethernet 0
ip directed-broadcast
ip multicast helper-map broadcast 224.5.5.5 120
ip pim dense-mode
!
access-list 120 permit udp any any 4000
access-list 120 deny udp any any
ip forward-protocol udp 4000
R2
interface ethernet 2
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
2005/10/24, Chris Lewis <chrlewiscsco@yahoo.com>:
> At the ingress of the last hop router is it not receiving a directed broadcast, it is receiving a multicast. Inside the router it gets turned in to a directed broadcast.
>
> I suggest labbing it up and seeing.
>
> Chris
>
> manoj menon <manojmenon123@yahoo.com> wrote:
> Chris/George,
>
> If we don't specify ip directed-broadcast on ingress interface (E1) of Last Hop router, how do we expect the subnet broadcast to be forwarded by the last hop router (Rtr C) to its other lan interface
>
> On the same token, on first hop router, we configure 'ip directed broadcast' because the broadcast received at the router has to be entertained by the router (whic is not by default) before it can be helpered! - is my understanding correct. kindly can you make this point clear -
>
> Regards
> Manoj
>
> George Amen <george.amen@gmail.com> wrote:
> Thanks alot guys,, appreciate all your help.
>
> - GA
>
>
> On 10/23/05, Chris Lewis wrote:
> > That is in the multicast domain, so no.
> >
> > Chris
> >
> >
> > George Cosmo wrote:
> > and what about ingress interface of the Last hop, do we have to enable
> > directed broadcast wheather it is serial or ethernet interface. or not.
> >
> > On 10/23/05, Chris Lewis wrote:
> > > The ip directed broadcast command should be configured on the interface
> > facing the clients, ie the broadcast rather than multicast domain. I opened
> > a documenttaion bug on this a while back and someone is actually going to
> > fix this sometime
> > >
> > > CSCei89111
> > >
> > > Chris
> > >
> > > George Amen wrote:
> > > IP Multicast Helper Example
> > >
> > http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122cgcr/fipr_c/ipcpt3/1cfmulti.htm#wp1003511
> > >
> > > Do we need 'ip directed-broadcast' on the last hop router facing clients?
> > >
> > > -GA
> > >
> > >
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