Pues no se :-? Las unicas referencias a multicast que encuentro son: {The Linux Networking Overview HOWTO} * Multicasting: Allows the Linux machine to act as a router for IP packets that have several destination addresses. It is needed on the MBONE, a high bandwidth network on top of the Internet which carries audio and video broadcasts. [...] The Linux kernel allows the tunnelling (encapsulation) of protocols. It can do IPX tunnelling through IP, allowing the connection of two IPX networks through an IP only link. It can also do IP-IP tunnelling, which it is essential for mobile IP support, multicast support and amateur radio. (see http://metalab.unc.edu/mdw/HOWTO/NET3-4-HOWTO-6.html#ss6.8) {Multicast over TCP/IP HOWTO} Multicast is... a need. Well, at least in some scenarios. If you have information (a lot of information, usually) that should be transmitted to various (but usually not all) hosts over an internet, then Multicast is the answer. One common situation in which it is used is when distributing real time audio and video to the set of hosts which have joined a distributed conference. Todo ello se refiere a enviar un mismo paquete a diferentes destinatarios. Hay una historia. Para recibir paquetes multicast (con multiples destinatarios) la tarjeta ethernet debe recibir paquetes cuya IP de destino no es la propia; por ejemplo, poniendo la tarjeta en modo "promiscuo" (recibir todos los paquetes de la red) y luego filtrar los que interesan. Hay un rango de IPs de destino que usan para eso (240.x.x.x) Pero no se trata de que la interfase de red se configure con dos o mas IPs. -- Saludos Carlos Robinson El 02.09.04 a las 10:25, Ruben Navarro Huedo escribió:

Date: Wed, 4 Sep 2002 10:25:02 +0200 From: Ruben Navarro Huedo To: Carlos E. R. , suse-linux-s@suse.com Subject: Re: [suse-linux-s] tarjeta de red eth0:0? era asi?

si es posible hacerlo ip-multicasting (creo)

El Mié 04 Sep 2002 03:38, Carlos E. R. escribió:

...

Que yo recuerde, cada interfase de red está asociado a una unica dirección IP.

-- You can find my public key here: http://pgp.rediris.es:11371/pks/lookup?op=get&search=0x03B7CCDF Linux Registered User 68452 (Nov/97) Ruben Navarro Huedo http://www.palotes.com eb5esx@eb5esx.ampr.org