Re: [tcpm] WG Last Call for ICMP Attacks
Joe Touch <touch@ISI.EDU> Wed, 09 September 2009 15:01 UTC
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Date: Wed, 09 Sep 2009 08:00:59 -0700
From: Joe Touch <touch@ISI.EDU>
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To: Carlos Pignataro <cpignata@cisco.com>
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Cc: "Smith, Donald" <Donald.Smith@qwest.com>, 'tcpm Extensions WG' <tcpm@ietf.org>, 'David Borman' <david.borman@windriver.com>, Fernando Gont <fernando@gont.com.ar>
Subject: Re: [tcpm] WG Last Call for ICMP Attacks
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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Carlos Pignataro wrote: ... > The document says the following; would s/discarded/discarded or delayed/ > cover it? > > It is important to note that ICMP error messages are unreliable, and > may be discarded due to data corruption, network congestion or rate- > limiting. Thus, while they provide useful information, upper layer > protocols cannot depend on ICMP for correct operation. That would help there, but it is also useful in other places to indicate what happens when a legitimate ICMP is delayed, i.e., how that affects what your algorithm would do. It's OK to qualify it with "this is unlikely", but IMO it needs to be discussed with more than a single word in a single paragraph. Joe -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.9 (MingW32) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iEYEARECAAYFAkqnwysACgkQE5f5cImnZrvcNACguSsF9p5U0pEOhvnWDsp4NOjL XSAAmwSLA8HQjZz0ORO6z9WhL8y6wPAn =PuSR -----END PGP SIGNATURE-----
- [tcpm] WG Last Call for ICMP Attacks David Borman
- Re: [tcpm] WG Last Call for ICMP Attacks Smith, Donald
- Re: [tcpm] WG Last Call for ICMP Attacks Joe Touch
- Re: [tcpm] WG Last Call for ICMP Attacks Smith, Donald
- Re: [tcpm] WG Last Call for ICMP Attacks Joe Touch
- Re: [tcpm] WG Last Call for ICMP Attacks Fernando Gont
- Re: [tcpm] WG Last Call for ICMP Attacks toby.moncaster
- Re: [tcpm] WG Last Call for ICMP Attacks Fernando Gont
- Re: [tcpm] WG Last Call for ICMP Attacks Smith, Donald
- Re: [tcpm] WG Last Call for ICMP Attacks Fernando Gont
- Re: [tcpm] WG Last Call for ICMP Attacks Smith, Donald
- Re: [tcpm] WG Last Call for ICMP Attacks Joe Touch
- Re: [tcpm] WG Last Call for ICMP Attacks Fernando Gont
- Re: [tcpm] WG Last Call for ICMP Attacks Lars Eggert
- Re: [tcpm] WG Last Call for ICMP Attacks Joe Touch
- Re: [tcpm] WG Last Call for ICMP Attacks Carlos Pignataro
- Re: [tcpm] WG Last Call for ICMP Attacks Joe Touch
- Re: [tcpm] WG Last Call for ICMP Attacks Carlos Pignataro
- Re: [tcpm] WG Last Call for ICMP Attacks Joe Touch
- Re: [tcpm] WG Last Call for ICMP Attacks Carlos Pignataro
- Re: [tcpm] WG Last Call for ICMP Attacks Joe Touch
- Re: [tcpm] WG Last Call for ICMP Attacks Anantha Ramaiah (ananth)
- Re: [tcpm] WG Last Call for ICMP Attacks Joe Touch
- Re: [tcpm] WG Last Call for ICMP Attacks Fernando Gont