Hi Ervin,

On Thu, 2008-02-07 at 23:37 +0100, ervin wrote:
> guidance for OpenBSD Bootstrap here -> http://www.ultradesic.com/?section=74

Which does not reveal an awful lot about specific trouble and possible
errors.. In fact, I recently tarted up my own doc, which is a bit more
verbose, especially in the error section (which is why I wrote it in the
first place):

http://stsx.xs4all.nl/www.stsx.org/openbsd/obsd-bootsoekris.html

(Added a few lines about firewalling this morning).

Thanks anyway, and Brian as well,

Bill


By the way, I think my initial error was a faulty "next-server", after
that I went into a chain of overlapping fixes/new errors. It happens..


> On 06/02/2008, Brian Candler <[EMAIL PROTECTED]> wrote:
> > On Wed, Feb 06, 2008 at 12:16:45PM +0100, Bill Maas wrote:
> > > I've been running dhcpd/tftpd on OpenBSD 3.8-4.2 on a PC without
> > > problems, for booting my Soekris boxens. However, when I run [almost]
> > > the exact same config on a net4521, and try booting another Soekris box
> > > off that one, TFTP times out. On the boot server, 'inetd -d' shows a
> > > rapid re-execution of tcpd (or of tftpd without using TCP wrappers) when
> > > the client tries to fetch the pxeboot image. The same happens by the way
> > > when I try to fetch files manually using 'tftp' from Linux or OpenBSD,
> > > but those implementations seem to have a reputation for stupidity and
> > > brokenness.
> > >
> > > The really weird thing is that the same config works on a PC as boot
> > > server, but not on a Soekris box. Anyone seen this before?
> >
> > No, but my suggestion would be to disable your OpenBSD pf temporarily and
> > see if the problem goes away.
> >
> > TFTP is a pretty ugly protocol. An exchange looks like this:
> >
> >     client   UDP port XXX ------------> UDP port 69    server
> >
> >              UDP port XXX <------------ UDP port YYY
> >
> >              UDP port XXX ------------> UDP port YYY   ...etc
> >
> > That is, the server choses a dynamic port for sending its replies from. It's
> > not easy to firewall properly.
> >
> > Maybe the difference between your clients is that one happens to have chosen
> > XXX=69 as its source port, but the other has chosen XXX=dynamic high port
> > (which is the "normal" thing to do). tcpdump could confirm or refute that
> > hypothesis.
> >
> > Regards,
> >
> > Brian.
> > _______________________________________________
> > Soekris-tech mailing list
> > [email protected]
> > http://lists.soekris.com/mailman/listinfo/soekris-tech
> >
> 
> 
> 
-- 
SOD Against NLS

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