Re: User-space bridge on Solaris?

[Guy Harris <guy () alum mit edu>]

On Sep 20, 2008, at 8:42 AM, Ben Greear wrote:

> To be a bridge, you have to receive all traffic, so disabling  
> PROMISC isn't really an option as far as I can tell.

Oh, well.  A quick look at the GLD driver in OpenSolaris (/usr/src/uts/ 
common/io/gld.c; see cvs.opensolaris.org) seems to indicate that if  
you go into physical promiscuous mode you *will* get a copy of  
outgoing packets.  I don't know whether all LAN drivers use GLD, but I  
suspect that, if there are any that don't, they'll implement the same  
behavior themselves.  If you don't want to get that, you'll have to  
modify whatever kernel code the packet goes through - or will have to  
use an OS that gives you the behavior you want.
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