From owner-freebsd-hackers@FreeBSD.ORG  Tue Jul  8 04:51:54 2003
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Date: Tue, 8 Jul 2003 14:00:12 +0200
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To: Terry Lambert <tlambert2@mindspring.com>, hackers@freebsd.org
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Subject: Re: 5 "Advanced" networking questions
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On Tue, 08 Jul 2003 04:17:04 -0700
Terry Lambert <tlambert2@mindspring.com> wrote:

> > I don't want to disable ICMP, just don't want to respond when ttl=0,
> > meaning when my firewall/gateway is on a "traceroute path".
> 
> You should specifically modify the ICMP code to not respond
> to echo datagrams, or when ttl == 0, then, and work it that
> way.  In other words, it's time to hack your network stack
> to specifically add that "feature".

Hmm, why not just use a firewall?

br
socketd