On Fri, 17 Jun 2005 07:33:05 MDT, Alejandro Bonilla said:

> 	So what do we really have here? Problem with Cisco or a problem in the
> driver? Both?

Oh - the TCP scaling bits are sent in a TCP Option header - which is what the PIX
is gratuitously throwing out (presumably because they're "optional", given the
sorts of dain bramage we've seen from PIX boxen before.  For the longest time,
their 'SMTP Fixup' was anything but....)