Date: Thu, 29 Feb 1996 18:59:15 GMT From: Paul Richards <p.richards@elsevier.co.uk> To: olah@cs.utwente.nl, pst@shockwave.com Cc: current@FreeBSD.ORG Subject: Re: Processing ICMP packets (was: -stable hangs at boot (fwd)) Message-ID: <199602291859.SAA17390@tees>
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> > It does have special meaning. Theoretically, you SHOULD be able to say > "if I get 9 (or 10) I cannot reach that net (or host), period." However, > many firewalls generate 9 or 10 (which was obsoleted by 13 for just this > reason). 13 says "don't assume anything other than this connection attempt > was refused for administrative reasons." > > Thanks, > Andras > Trouble is, if you're a paranoid firewall maintainer, like most are (and should be), then you don't want to tell the world that you're a firewall and you're denying access, you want to say, there's no such address as the one you're trying so stop wasting your time.
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