Re: Default behaviour of IP Options processing

Julian Elischer wrote:
> 
> On Thu, 6 May 2004, Andre Oppermann wrote:
> 
> > I have just committed the attached change to ip_input() to control the
> > behaviour of IP Options processing.  The default is the unchanged
> > current behaviour.
> [...]
> > routing.  The remaining IP Options are RR (record route) and TS (time
> > stamp) which are both useless.  For finding out which path a packet takes
> > we use traceroute instead of RR.  Besides that RR is limited to the space
> > in the IP Options field and can possibly record only a few hops (9 IIRC).
> > Time stamp is useless for the same reason and since it doesn't have a
> > fixed and synchronized timebase it is even more so useless.
> >
> > Opinions?  Discussion?  Yes/Nay?
> 
> I use RR all the time.
> it allows you to record the reverse path, (up to the size limitation).

Which won't get you far these days... ;-)

> what about inet6 ? do you plan on doing things there?
> There are more options defined there..

As far as I am aware IPv6 packets do not have any option space in the
packet header.  You have header stacking there though which has its
own evil implications...

-- 
Andre