From: Alexei Monastyrnyi (alexeim@orcsoftware.com)
Date: Wed Mar 22 2006 - 05:18:17 GMT-3
Hi.
IMO you don't have to know a UDP details of multicast traffic for
particular group, you will translate all multicast for this group to an
arbitrary UDP port of your choice for directed broadcast and than back.
Just reverse an example below from
broadcast <-> multicast <-> broadcast
to
multicast <-> broadcast <-> multicast
Using tunnels is a tricky Q cause they usually say in preamble that you
cannot create any new interface unless it is necessary to accomplish a
task. So this is usually a Q to proctor.
A.
on 22/03/2006 00:21 david robin wrote:
> I think tunnel interface will not solve the problem as you must enable
> multicast on the tunnel interface,
> with multicast helper, it may work but you must know the udp port which the
> multicast is use in order to make that work
>
>
> On 3/22/06, Alexei Monastyrnyi <alexeim@orcsoftware.com> wrote:
>
>> Hi.
>> you can do that either via tunnel interface or via multicast to
>> broadcast convention.
>>
>> multicast helper example may help
>>
>>
>>
> http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122cgcr/fipr_
> c/ipcpt3/1cfmulti.htm#wp1003511
>
>> A.
>>
>> on 21/03/2006 22:54 Schulz, Dave wrote:
>>
>>> Group -
>>>
>>> If I have a multicast group that is running in sparse-mode with 3
>>> routers and a static RP.....R1, R2 and R3. I have a loopback on R3 that
>>> has a igmp join to 225.5.5.5. And, everything is working good and can
>>> ping the group from all routers, and everyone is happy. However, the
>>> next requirement is to have a router R4 attached to R2 that does not
>>> have multicast enabled, but allowing users on VLAN70 to reach this
>>> multicast group. And, you have to configure this on R2, not R4. Any
>>> thoughts?
>>>
>>> R1---------------R2(RP)------------------R3
>>> | s0
>>> \
>>> R4........VLAN70
>>>
>>>
>>>
>>> Dave Schulz,
>>> Email: dschulz@dpsciences.com <mailto:dschulz@dpsciences.com >
>>>
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