Re: sysctl should disable ECN by default
On Thu, Sep 06, 2001 at 04:43:57PM +0200, Florian Weimer wrote:
> Eric Van Buggenhaut <eric@andago.com> writes:
>
> > On Wed, Sep 05, 2001 at 02:37:28PM +0200, Florian Weimer wrote:
> > > Russell Coker <russell@coker.com.au> writes:
> > >
> > > > Why should the default configuration be changed to account for the
> > > > diminishing number of broken routers on the net?
> > >
> > > >From a technical behavior, throwing away packets with unknown protocol
> > > flags is perfectly acceptable in any case and even reasonable in some
> > > environments.
> >
> > No it's not, you're violating RFC 793.
>
> I was indeed wrong, but not because of RFC 793. IIRC, there isn't
> such a required in this standard.
Yes there is.
RFC 793 reserve bits 'for future use'. These bits may not be
touched by a router or a firewall.
The buggy hardware we are talking about zeroes those bits.
Thus they violate RFC793.
--
Eric VAN BUGGENHAUT "Oh My God! They killed init! You Bastards!"
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