Hi Mark,

Thanx,great explanation,

but how HQ should know to send multicast traffic via it's loopback ?  (in
CME setup there is a commnad to tell router to do that but there is no
telephony-service on this router)


now I get

 IP(0): s=142.4.64.11 (FastEthernet0/0.11) d=239.1.1.5 id=59691, ttl=4,
prot=17, len=214(200), mroute olist nul

on HQ router


Jeremy

On Mon, May 18, 2009 at 4:44 AM, Mark Snow <[email protected]> wrote:

> Loopback on HQ rtr also needs ip pim sparse-dense or dense-mode depending
> on how you have multicast setup. Ingress IP int is FastE, egress IP int is
> LB, that will allow IOS to send  RTP to T1 trunk.
>
>
> Cheers,
>
> --
> Mark Snow
> CCIE #14073 (Voice, Security)
>
> Senior Technical Instructor - IPexpert, Inc.
>
> Telephone: +1.810.326.1444
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>
> On May 17, 2009, at 2:22 PM, jeremy co <[email protected]> wrote:
>
>  Hi,
>>
>>
>> IPPHONE1--------CCM-----HQ------T1-------PSTN Router (CME)
>> ----------IPPHONE2
>>
>> multicast packet receives by HQ router,  How HQ convert multicast packet
>> to one it send on T1 ?  How can verify that ?
>>
>> -on pstn router It would unicast it to ipphone2.
>>
>> what I have in my scenario is mpackets get in HQ , but from then I cannot
>> trace them wether they go to pstn or not.  I got dead air on pstn.
>>
>>
>> Please comment on this
>>
>> Jeremy
>>
>

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