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Date: Thu, 06 May 2004 21:35:41 +0200
From: Andre Oppermann <andre@freebsd.org>
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To: David Wolfskill <david@catwhisker.org>
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Subject: Re: Default behaviour of IP Options processing
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David Wolfskill wrote:
> >However I want to propose to change the default from processing options
> >to ignoring options (or even stronger to reject them).
> 
> >....
> 
> >Opinions?  Discussion?  Yes/Nay?
> 
> >From "ipfw show" on my home gateway/NAT/packet fileter box:
> 
> ...
> 02000      0         0 deny log ip from any to any ipopt rr
> 02010      0         0 deny log ip from any to any ipopt ts
> 02020      0         0 deny log ip from any to any ipopt ssrr
> 02030      0         0 deny log ip from any to any ipopt lsrr
> 
> I implemented those rules back around August, 1999, when I first set the
> box up; I don't recall that they have ever been triggered.  (Uptime on
> the box is nowhere near 4+ years, as it's been tracking -STABLE about
> every couple of weeks:

I have done the same counters on my ISPs core routers with about 40Mbit/s
of junky unfiltered public Internet traffic for many hours now.  No hits
so far.

-- 
Andre