Disable Loopback in Promiscuos Mode

Hi,
I am using a Sun Fast Ethernet NIC (hme) in promiscuous mode.
My object is to pick up all ethernet packets on the lan.
However, the driver also picks up the packet it puts on the
lan (loopback). Is there some way to disable this functionality
so that the driver does not receive back the packets it transmits.
The DLPI interface just provides a way to enable/disable promiscuous
mode in PHYS, SAP and MULTI level. I have not seen any other
functionality. However, while browsing through the sun webite I
glanced through a document page for a Fast Ethernet ASIC (which is
probably the one used in the SUN Ethernet Cards)
http://www.sun.com/microelectronics/manuals/STP2002QFP-UG.pdf
It mentions an Address_Filter_Enable and some Address Filter Registers.
It gave me some hope that a solution may exist (so that I don't have
to filter out those pkts in software).
Any help will be appreciated.
Thanks
Pari

Janice,
I can not really use pfmod or any such utility because I am
passing packets directly to the ethernet driver through DLPI
and if there is a loopback in the software as you suggested,
then it must be in the driver of the ethernet.
As I have my own TCP/IP stack, I can not use pfmod or other
such filtering mechanisms. I will have to filter it as soon
as I receive from the ethernet. Otherwise, it is passed onto
IP, ARP etc.
While surfing through some newsgroup, I saw a similar post for
Windows 2000 OS, and somebody had replied that there is an
undocumented flag which can be set, to disable the loopback.
I think it was discovered using truss or something similar on
a known application which does not do loopback.
I am looking for some similar feature on Solaris.
Thanks
Pari

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