> > > > This seems to be a bug. Has it been already fixed in later
> > > > kernel versions or is this how it is intended to remain?
> > >
> > > iirc this was intentional. The RFC suggested method doesn't work when
> > > talking to
> > > some stacks.
> > >
> > But that cannot be valid enough justification for doing
> > something against RFC right?
> Of course it is. Welcome to the real world. RFC1122 has a lot of bugs and
> does not describe really implemented practice (e.g. BSD set the defacto
> in many behaviours and it does not always follow 1122)
So do u consider mandating definition of zero-window probes as defined
in RFC793 as a bug in RFC1122?
Or else r u saying this bug is introduced in linux to take care of
faulty stacks existing in the world. zero-window probes as defined
in RFC1122 is not buggy right?