On 2/27/11 12:50 PM, John R Pierce wrote: > On 02/27/11 9:16 AM, Les Mikesell wrote: >> Is there any difference in efficiency in how well the NIC hardware filters the >> assigned addresses? > > NIC's work in MAC addresses, not IP. Sort-of. Most NICs know enough about IPv4 multicast to at least help filter unwanted addresses without bothering the CPU. -- Les Mikesell lesmikesell at gmail.com