Re: [v6ops] SLAAC renum: Problem Statement & Operational workarounds
Philip Homburg <pch-v6ops-9@u-1.phicoh.com> Sun, 27 October 2019 20:02 UTC
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In-reply-to: Your message of "Sun, 27 Oct 2019 13:14:59 -0400 ." <855496CB-BF7E-41E6-B273-41C4AA771E41@fugue.com>
Date: Sun, 27 Oct 2019 21:02:24 +0100
Archived-At: <https://mailarchive.ietf.org/arch/msg/v6ops/-zzZGn1ChtciKGx8ddZGpVRKDYk>
Subject: Re: [v6ops] SLAAC renum: Problem Statement & Operational workarounds
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> I think you missed my point. You can't do flash renumbering by > advertising a prefix with a valid lifetime of zero, because that > will be ignored by hosts. If it were not ignored by hosts, it > would be a very effective DoS vector. And so if you want to > be able to flash deprecate a route, you need some way to validate > that the deprecation is coming from the same source as the route. > Hence my suggested "limited SEND". Today, you can deprecate a prefix by sending an RA with the preferred lifetime set to zero. That is enough to get IPv6 at the same level as IPv4. Without RA-guard or SEND there are already quite a lot of opportunities to perform both a denial of service attack and a man in the middle attack on a local LAN. I'm not sure if the protection against advertising a zero valid lifetime is actually worth it. Any network that worries about local malicious hosts probably already uses RA-guard (or possibly SEND). In any case, it doesn't matter to the CPE whether the host will accept zero valid time or not. The CPE can just send them and then a separate document can either instruct hosts to accept all RAs with zero valid time or require some for of SEND. The key thing is that without any protocol modifications we can get IPv6 at the same level as IPv4. If we make more extensive modifications to the host, then there is no reason to rely on RA timers and the host could handle unmodified CPEs.
- [v6ops] SLAAC renum: Problem Statement & Operatio… Fernando Gont
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Philip Homburg
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Fernando Gont
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Philip Homburg
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Mark Smith
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Alexandre Petrescu
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Trevor Warwick
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Mark Smith
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Ole Troan
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Fernando Gont
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Mark Smith
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Fernando Gont
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Fernando Gont
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Eric Vyncke (evyncke)
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… JORDI PALET MARTINEZ
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Ole Troan
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Alexandre Petrescu
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Owen DeLong
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Owen DeLong
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Brian E Carpenter
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Mark Smith
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Philip Homburg
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Philip Homburg
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Alexandre Petrescu
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Alexandre Petrescu
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Ole Troan
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Philip Homburg
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Ole Troan
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Gert Doering
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Philip Homburg
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Mark Smith
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Clark Gaylord
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Ole Troan
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Nick Hilliard
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Richard Patterson
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Fernando Gont
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Fernando Gont
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Ole Troan
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Fernando Gont
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Fernando Gont
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Fernando Gont
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Ted Lemon
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Fernando Gont
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Fernando Gont
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Fernando Gont
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Ole Troan
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Fernando Gont
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Ted Lemon
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Fernando Gont
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Fernando Gont
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Brian E Carpenter
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Fernando Gont
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Mark Smith
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Brian E Carpenter
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Mark Smith
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Fernando Gont
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Owen DeLong
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Mark Smith
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Ted Lemon
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Nick Hilliard
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Philip Homburg
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Ted Lemon
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Philip Homburg
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Ole Troan
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Philip Homburg
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Fernando Gont
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Ted Lemon
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Philip Homburg
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Brian E Carpenter
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Owen DeLong
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Owen DeLong
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Ted Lemon
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Ted Lemon
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Philip Homburg
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Philip Homburg
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Owen DeLong
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Philip Homburg
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Bernie Volz (volz)
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Mark Smith
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Ole Troan
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Philip Homburg
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Kristian McColm
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Ole Troan
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Philip Homburg
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Ole Troan
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Philip Homburg
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Ole Troan
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Jen Linkova
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Ole Troan
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Brian E Carpenter
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Owen DeLong
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Owen DeLong
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Owen DeLong
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Ted Lemon
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Philip Homburg
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Owen DeLong
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Owen DeLong
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Jen Linkova
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Jen Linkova
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Philip Homburg
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Ted Lemon
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Ole Troan
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Ted Lemon
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Timothy Winters
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Nick Hilliard
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Ted Lemon
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Timothy Winters
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Ted Lemon
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Timothy Winters
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Bernie Volz (volz)
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… JORDI PALET MARTINEZ
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Bernie Volz (volz)
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Ted Lemon
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Bernie Volz (volz)
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Ole Troan
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Ted Lemon
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Radu-Adrian Feurdean
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Alexandre Petrescu
- [v6ops] A broken promise - "You said PD Prefix Va… Mark Smith
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Owen DeLong
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Alexandre Petrescu
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Owen DeLong
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Alexandre Petrescu
- Re: [v6ops] A broken promise - "You said PD Prefi… Naveen Kottapalli
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Fernando Gont
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Fernando Gont
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Radu-Adrian Feurdean
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Fernando Gont
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Fernando Gont
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Owen DeLong
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Ted Lemon
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Fernando Gont
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Fernando Gont
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Fernando Gont
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Ted Lemon
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Ted Lemon
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Fernando Gont
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Fernando Gont
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Bernie Volz (volz)
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Owen DeLong
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Owen DeLong
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Owen DeLong
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Owen DeLong
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Owen DeLong
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Owen DeLong
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Mark Smith
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Fernando Gont
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Fernando Gont
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Fernando Gont
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Fernando Gont
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Fernando Gont
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Fernando Gont
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Fernando Gont
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Fernando Gont
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Fernando Gont
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Mark Smith
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Fernando Gont
- Re: [v6ops] A broken promise - "You said PD Prefi… Fernando Gont
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Fernando Gont
- Re: [v6ops] A broken promise - "You said PD Prefi… Sander Steffann
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Ted Lemon
- Re: [v6ops] A broken promise - "You said PD Prefi… Fernando Gont
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Fernando Gont
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Ted Lemon
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Fernando Gont
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Fernando Gont
- Re: [v6ops] A broken promise - "You said PD Prefi… Philip Homburg
- Re: [v6ops] A broken promise - "You said PD Prefi… Ole Troan
- Re: [v6ops] A broken promise - "You said PD Prefi… Ted Lemon
- Re: [v6ops] A broken promise - "You said PD Prefi… Mark Smith
- Re: [v6ops] A broken promise - "You said PD Prefi… Ole Troan
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Ole Troan
- Re: [v6ops] A broken promise - "You said PD Prefi… sthaug
- Re: [v6ops] A broken promise - "You said PD Prefi… Ted Lemon
- Re: [v6ops] A broken promise - "You said PD Prefi… Ole Troan
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Ted Lemon
- Re: [v6ops] A broken promise - "You said PD Prefi… Ted Lemon
- Re: [v6ops] A broken promise - "You said PD Prefi… Ole Troan
- Re: [v6ops] A broken promise - "You said PD Prefi… Ted Lemon
- Re: [v6ops] A broken promise - "You said PD Prefi… Bernie Volz (volz)
- Re: [v6ops] A broken promise - "You said PD Prefi… Ted Lemon
- Re: [v6ops] A broken promise - "You said PD Prefi… Bernie Volz (volz)
- Re: [v6ops] A broken promise - "You said PD Prefi… Ted Lemon
- Re: [v6ops] A broken promise - "You said PD Prefi… Ole Troan
- Re: [v6ops] A broken promise - "You said PD Prefi… Fernando Gont
- Re: [v6ops] A broken promise - "You said PD Prefi… Bernie Volz (volz)
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Ole Troan
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Fred Baker
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Owen DeLong
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Owen DeLong
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Owen DeLong
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Bernie Volz (volz)
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Owen DeLong
- Re: [v6ops] A broken promise - "You said PD Prefi… Owen DeLong
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Owen DeLong
- Re: [v6ops] A broken promise - "You said PD Prefi… Owen DeLong
- Re: [v6ops] A broken promise - "You said PD Prefi… Ted Lemon
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Owen DeLong
- Re: [v6ops] A broken promise - "You said PD Prefi… sthaug
- Re: [v6ops] A broken promise - "You said PD Prefi… Owen DeLong
- Re: [v6ops] A broken promise - "You said PD Prefi… Philip Homburg
- Re: [v6ops] A broken promise - "You said PD Prefi… Owen DeLong
- Re: [v6ops] A broken promise - "You said PD Prefi… Ted Lemon
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Bernie Volz (volz)
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Alexandre Petrescu
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Alexandre Petrescu
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Alexandre Petrescu
- Re: [v6ops] SLAAC renum: Problem Statement & Oper… Owen DeLong
- Re: [v6ops] A broken promise - "You said PD Prefi… Fernando Gont
- Re: [v6ops] A broken promise - "You said PD Prefi… Ole Troan
- Re: [v6ops] A broken promise - "You said PD Prefi… Ole Troan
- Re: [v6ops] A broken promise - "You said PD Prefi… Fernando Gont
- Re: [v6ops] A broken promise - "You said PD Prefi… Alexandre Petrescu
- Re: [v6ops] A broken promise - "You said PD Prefi… Philip Homburg
- Re: [v6ops] A broken promise - "You said PD Prefi… Ted Lemon
- Re: [v6ops] A broken promise - "You said PD Prefi… Mark Smith
- Re: [v6ops] A broken promise - "You said PD Prefi… Fernando Gont
- Re: [v6ops] A broken promise - "You said PD Prefi… Mark Smith
- Re: [v6ops] A broken promise - "You said PD Prefi… Philip Homburg
- Re: [v6ops] A broken promise - "You said PD Prefi… Philip Homburg
- Re: [v6ops] A broken promise - "You said PD Prefi… Ted Lemon
- Re: [v6ops] A broken promise - "You said PD Prefi… Richard Patterson
- Re: [v6ops] A broken promise - "You said PD Prefi… Ted Lemon
- Re: [v6ops] A broken promise - "You said PD Prefi… Richard Patterson
- Re: [v6ops] A broken promise - "You said PD Prefi… Ted Lemon
- Re: [v6ops] A broken promise - "You said PD Prefi… Mark Smith
- Re: [v6ops] A broken promise - "You said PD Prefi… Ted Lemon
- Re: [v6ops] A broken promise - "You said PD Prefi… Mark Smith
- Re: [v6ops] A broken promise - "You said PD Prefi… Ole Troan
- Re: [v6ops] A broken promise - "You said PD Prefi… Mark Andrews
- Re: [v6ops] A broken promise - "You said PD Prefi… Fernando Gont
- Re: [v6ops] A broken promise - "You said PD Prefi… Fernando Gont
- [v6ops] What problem are we trying to solve? (Re:… Mark Smith
- Re: [v6ops] A broken promise - "You said PD Prefi… Owen DeLong
- Re: [v6ops] A broken promise - "You said PD Prefi… Owen DeLong
- Re: [v6ops] What problem are we trying to solve? … Tassos Chatzithomaoglou
- Re: [v6ops] What problem are we trying to solve? … Fernando Gont
- Re: [v6ops] What problem are we trying to solve? … Fernando Gont
- Re: [v6ops] What problem are we trying to solve? … Tassos Chatzithomaoglou
- Re: [v6ops] What problem are we trying to solve? … Mark Smith
- Re: [v6ops] What problem are we trying to solve? … Fred Baker
- Re: [v6ops] What problem are we trying to solve? … Tassos Chatzithomaoglou
- Re: [v6ops] What problem are we trying to solve? … Richard Patterson
- Re: [v6ops] What problem are we trying to solve? … Ted Lemon
- Re: [v6ops] What problem are we trying to solve? … Ted Lemon
- Re: [v6ops] What problem are we trying to solve? … Tassos Chatzithomaoglou
- Re: [v6ops] What problem are we trying to solve? … Ted Lemon
- Re: [v6ops] What problem are we trying to solve? … Ole Troan