multicasting

[Michael Welle]

Hi,

Rakotomandimby Mihamina <mihamina at gulfsat.mg> writes:

> 08/19/2009 02:48 PM, Fred Roller:
>> I can't speak to Network manager; but, from the command line you can set
>> up an alternate IP as you would any other ethernet connection.  Just
>> append a :[#] to the end of the connection name.  For example, if you
>> multicast eth0, your first multicast would be on eth0:1.
>> [...]
>> froller at metis:~$ sudo ifconfig eth0:1 192.168.32.96
>
> Just that, and it's supposed to belong to a "multicast group"?
the example has nothing to do with mcast. You can use ifconfig to check
if the interface is multicast capable. With netstat you can print the
already joined mcast groups. Mcast is senseless without applications
that support mcast. Typically the application sets its socket to
mcast and deals with the mcast address(es). What do you want to use
mcast for? 

Regards
hmw

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