On Fri, Jun 15, 2007 at 01:46:04AM -0700, mrchit_2000 wrote:
> 
> 
> David Young wrote:
> > 
> > On Thu, Jun 14, 2007 at 04:54:43PM -0700, mrchit_2000 wrote:
> >> 
> >> Hi all,
> >> 
> >> I am having trouble with bringing up an ethernet interfaces on my system.
> >> Here is my situation. I have a system which have 2 CPU. Each of the CPU
> >> has
> >> a MAC interface connected directly to the other via RGMII without phys.
> >> This
> >> makes me think this is  a point-to-point link. When configuring the
> >> interfaces on the 2 CPU,  I use ifconfig :
> >>      ifconfig eth2 10.10.10.10 10.10.10.22 netmask 255.255.255.0
> >> 
> >> The interfaces are setup in driver with these flags: IFF_POINTOPOINT,
> >> IFF_NO_ARP, IFF_SIMPLEX and IFF_NOTRAILER. Here is the display when do
> >> ifconfig eth2:
> > 
> > Are you able to modify the driver?  Throughout the ethernet common code,
> > NetBSD will assume a broadcast interface where ARP works.  If you follow
> > the convention, you may have an easier time.
> > 
> 
> I have access to the driver but not sure what to change. I want the kernel
> not to do any arp on the interface, can I do that? I guess one way is to add
> a static arp entry, but any other way? Anyway to tell the kernel just send
> out the packet to the interface and the other end just pickup without
> looking at the destination MAC address? How normally is a point to point
> link interface configured?

I believe this interface will "just work" if you treat the ethernet as
an ethernet: i.e., BROADCAST instead of POINTOPOINT.  ARP enabled.

Dave

-- 
David Young             OJC Technologies
dyoung@ojctech.com      Urbana, IL * (217) 278-3933 ext 24