Re: mad mad interrupts(bridging)

[Jed Dobson <jed@wgtech.com>]

Well,I wouldn't go changing the mac addresses with mkp, use this OBP
command:

ok setenv local-mac-address? true
ok reboot

OR

# eeprom local-mac-addres?=true (on Solaris)

This will give each interface on the qfe card and your onboard lance
individual MAC addresses, should clear some things up.

-jed

// Jed Dobson, Systems Engineer
// Workgroup Technology Partners
// 21 Saco St, Westbrook ME 04092
// Office: (207) 854-5200 |  Cell: (207) 838-7257

iForce Regional System Provider - Northern New England

On Tue, 5 Dec 2000, Peter Galbavy wrote:

> I don't know if this is your probelm, but it most likely is, but on Sun
> hardware, by default *all* Ethernet interfaces (and Token Ring and FDDI I
> think) get the same MAC address. This will cause untold loops and weirdness
> when you have more than one interface on the same network.
> 
> You must change the le0 or hme2 MAC to a made up one - what I can't remember
> is how on OpenBSD/sparc...
> 
> Check using "netstat -i" and look at the hardware addresses.
> 
> rgds,
> --
> Peter Galbavy
> Knowledge Matters Ltd.
> http://www.knowledge.com/
> ----- Original Message -----
> From: "Jake Luck" <openbsd@10k.org>
> To: "OpenBSD-misc" <misc@openbsd.org>
> Cc: <sparc@openbsd.org>
> Sent: Tuesday, December 05, 2000 6:23 AM
> Subject: mad mad interrupts(bridging)
> 
> 
> >
> > trying to bridge...
> >
> > on sparc4 running Dec1's -current. with a sbus quad-fast-ethernet board.
> > here is the layout
> >
> >                                                -+---to internet--
> >                                                 |
> >           +--------------------------+    +----++---+
> >           |   openbsd-current sparc  |    |router   |
> >           |     +------------------+ |    +--+------+
> >           +--+--+-  quadfast ether +-+       |
> >           le0|  +------------+-----+
> >              |          hme2 |   |hme3       |
> >              |               |   |           |
> >              |               |   +----+------+
> >              |               |
> >              |               |
> >              |               |         LAN
> >   +----------+---------------+------------------------------------+
> >
> >
> > the bridge is composed of hme2 and hme3. le0 has a real IP(so I can reach
> > the box over the network from the internal LAN). the openbsd box has a
> > default route to the router(i also tried without it). however as soon as I
> > bind the 2 hme interface to the bridge, the box slows to a grinding halt.
> > the first 10 seconds it seems to pass packets(was able to ping the router
> > from another box on the LAN. but after that, network traffic goes
> > berserk(i can see it on the hubs). check the openbsd box: it has a load of
> > 1.4 and the cpu is loaded 99% with system interrupts(from top). I check
> > the wire via arp, and all 4 interfaces from the quad card seems to get
> > unique mac addresses.
> >
> > would the wise here please shed some light on this? is my topology asking
> > for trouble? what would be a better way?
> >
> > thanks.
> > Jake
> >
> >
> >
> >
> 
>