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Date:      Wed, 21 Feb 2001 12:15:45 -0800
From:      "Jonathan Graehl" <jonathan@graehl.org>
To:        "freebsd-Arch" <freebsd-arch@FreeBSD.ORG>
Subject:   Why are ICMP redirects observed by default?
Message-ID:  <NCBBLOALCKKINBNNEDDLGEEPDLAA.jonathan@graehl.org>

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I thought ICMP redirects had fallen out of favor; is the security risk (an
interloper being able to change routing tables) considered insignificant for
leaf or edge machines?  Do redirects actually help performance in the real
world?  Of course, there is nothing to complain about, since the behavior can be
toggled; I am simply curious as to what the current feeling about them is (aside
from the warm fuzzy feeling of RFC-compliance)

# sysctl -a | grep redirect
net.inet.ip.redirect: 1
net.inet.icmp.drop_redirect: 0
net.inet.icmp.log_redirect: 0

--
Jonathan Graehl
  email: jonathan@graehl.org
  web: http://jonathan.graehl.org/
  phone: 858-642-7562


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