Layer 2 (stealth) firewalls - PBR?

>>>>> "Darden," == Darden, Patrick S <darden_at_armc.org> writes:

    Darden,> Layer 2, unlike IP, is on a flat fabric. There are no
    Darden,> routers, no routing protocols, it is bridged. Every
    Darden,> point on the fabric knows every other point on the
    Darden,> fabric.

While not expert on the subject, I know of a switch vendor that is
adding PBR at layer 2 to their gear. They usually deal with some Layer
2 protocols (use in special industrial environments), and they want to
control where those Layer 2 packets go (output port) depending on
several factors like being unicast/multicast/broadcast, coming/going
to certain MAC addresses/addresses groups, etc.

So while not widely used, there are people doing 'crazy' stuff like
that.

Saludos. Iņaki.

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