Re: [v6ops] [dhcwg] IPv6-Only Preferred DHCPv4 option
Roy Marples <roy@marples.name> Thu, 05 December 2019 14:48 UTC
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To: Ted Lemon <mellon@fugue.com>
Cc: Lorenzo Colitti <lorenzo@google.com>, Tomek Mrugalski <tomasz.mrugalski@gmail.com>, dhcwg@ietf.org, V6 Ops List <v6ops@ietf.org>, draft-link-dhc-v6only@ietf.org
References: <a6035aba-cab5-c779-c977-8b1a995eccfd@marples.name> <7EC52F0F-DBB8-4339-89EE-5123DFAE415E@fugue.com>
From: Roy Marples <roy@marples.name>
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Date: Thu, 05 Dec 2019 14:47:59 +0000
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Archived-At: <https://mailarchive.ietf.org/arch/msg/v6ops/mNvUxpZSz93_VJvgTCHkpFLl1kU>
Subject: Re: [v6ops] [dhcwg] IPv6-Only Preferred DHCPv4 option
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On 05/12/2019 14:39, Ted Lemon wrote: > On Dec 4, 2019, at 8:46 PM, Roy Marples <roy=40marples.name@dmarc.ietf.org> wrote: >> So in simple terms. >> The server offers some information. >> Given this information (in current DHCP semantics) we can RENEW (T1) or REBIND (T2). >> If the client does not request the offer (hey! I see this new fangled option here that says NO DHCP) the client can still accept the T2 timer at the very least. >> >> Think of the analogus RFC 7083 - Modification to Default Values of SOL_MAX_RT and INF_MAX_RT. This RFC goes out of its way not to add new timers. > > There is a reason why DHCP includes a parameter request list option. If the client doesn’t ask for this newfangled option, it shouldn’t see it. And so we can know for sure that the client supports this capability, because it asked for it. > > Is there any reason why we /wouldn’t/ want to do this? None at all. I think it's a good option to have, but I strongly believe it should just be a boolean on/off option. The host should be as dumb as possible. If the server knows *something* else is around that it should use instead it can disable DHCP via this option. The *something* else is probably IPv6 but I don't see why this RFC should mention it other than a use case. Roy
- Re: [v6ops] IPv6-Only Preferred DHCPv4 option Philip Homburg
- Re: [v6ops] [dhcwg] IPv6-Only Preferred DHCPv4 op… mohamed.boucadair
- [v6ops] IPv6-Only Preferred DHCPv4 option Jen Linkova
- Re: [v6ops] IPv6-Only Preferred DHCPv4 option Bjørn Mork
- Re: [v6ops] IPv6-Only Preferred DHCPv4 option Lorenzo Colitti
- Re: [v6ops] IPv6-Only Preferred DHCPv4 option Tommy Pauly
- Re: [v6ops] [dhcwg] IPv6-Only Preferred DHCPv4 op… Lencse Gábor
- Re: [v6ops] [dhcwg] IPv6-Only Preferred DHCPv4 op… Ted Lemon
- Re: [v6ops] [dhcwg] IPv6-Only Preferred DHCPv4 op… mohamed.boucadair
- Re: [v6ops] IPv6-Only Preferred DHCPv4 option Michael Richardson
- Re: [v6ops] [dhcwg] IPv6-Only Preferred DHCPv4 op… Bernie Volz (volz)
- Re: [v6ops] IPv6-Only Preferred DHCPv4 option Brian E Carpenter
- Re: [v6ops] [dhcwg] IPv6-Only Preferred DHCPv4 op… Bernie Volz (volz)
- Re: [v6ops] IPv6-Only Preferred DHCPv4 option Nick Hilliard
- Re: [v6ops] IPv6-Only Preferred DHCPv4 option Ted Lemon
- Re: [v6ops] IPv6-Only Preferred DHCPv4 option Fred Baker
- Re: [v6ops] IPv6-Only Preferred DHCPv4 option Jen Linkova
- Re: [v6ops] [dhcwg] IPv6-Only Preferred DHCPv4 op… Jen Linkova
- Re: [v6ops] IPv6-Only Preferred DHCPv4 option Jen Linkova
- Re: [v6ops] [dhcwg] IPv6-Only Preferred DHCPv4 op… Jen Linkova
- Re: [v6ops] IPv6-Only Preferred DHCPv4 option Fernando Gont
- Re: [v6ops] IPv6-Only Preferred DHCPv4 option Jen Linkova
- Re: [v6ops] IPv6-Only Preferred DHCPv4 option Jen Linkova
- Re: [v6ops] IPv6-Only Preferred DHCPv4 option Jen Linkova
- Re: [v6ops] IPv6-Only Preferred DHCPv4 option Lorenzo Colitti
- Re: [v6ops] [dhcwg] IPv6-Only Preferred DHCPv4 op… Jen Linkova
- Re: [v6ops] [dhcwg] IPv6-Only Preferred DHCPv4 op… Roy Marples
- Re: [v6ops] IPv6-Only Preferred DHCPv4 option Mark Smith
- Re: [v6ops] [dhcwg] IPv6-Only Preferred DHCPv4 op… David Farmer
- Re: [v6ops] [dhcwg] IPv6-Only Preferred DHCPv4 op… Jen Linkova
- Re: [v6ops] [dhcwg] IPv6-Only Preferred DHCPv4 op… Jen Linkova
- Re: [v6ops] [dhcwg] IPv6-Only Preferred DHCPv4 op… David Farmer
- Re: [v6ops] [dhcwg] IPv6-Only Preferred DHCPv4 op… Roy Marples
- Re: [v6ops] [dhcwg] IPv6-Only Preferred DHCPv4 op… Roy Marples
- Re: [v6ops] [dhcwg] IPv6-Only Preferred DHCPv4 op… Mark Smith
- Re: [v6ops] [dhcwg] IPv6-Only Preferred DHCPv4 op… Roy Marples
- Re: [v6ops] IPv6-Only Preferred DHCPv4 option Lorenzo Colitti
- Re: [v6ops] [dhcwg] IPv6-Only Preferred DHCPv4 op… Mark Smith
- Re: [v6ops] IPv6-Only Preferred DHCPv4 option Jen Linkova
- Re: [v6ops] [dhcwg] IPv6-Only Preferred DHCPv4 op… Lorenzo Colitti
- Re: [v6ops] [dhcwg] IPv6-Only Preferred DHCPv4 op… Lorenzo Colitti
- Re: [v6ops] [dhcwg] IPv6-Only Preferred DHCPv4 op… Roy Marples
- Re: [v6ops] [dhcwg] IPv6-Only Preferred DHCPv4 op… Lorenzo Colitti
- Re: [v6ops] [dhcwg] IPv6-Only Preferred DHCPv4 op… Roy Marples
- Re: [v6ops] IPv6-Only Preferred DHCPv4 option Jen Linkova
- Re: [v6ops] IPv6-Only Preferred DHCPv4 option Fernando Gont
- Re: [v6ops] [dhcwg] IPv6-Only Preferred DHCPv4 op… Lorenzo Colitti
- Re: [v6ops] IPv6-Only Preferred DHCPv4 option Alexandre Petrescu
- Re: [v6ops] [dhcwg] IPv6-Only Preferred DHCPv4 op… Jen Linkova
- Re: [v6ops] IPv6-Only Preferred DHCPv4 option Jen Linkova
- Re: [v6ops] [dhcwg] IPv6-Only Preferred DHCPv4 op… mohamed.boucadair
- Re: [v6ops] [dhcwg] IPv6-Only Preferred DHCPv4 op… Lorenzo Colitti
- Re: [v6ops] IPv6-Only Preferred DHCPv4 option Philip Homburg
- Re: [v6ops] IPv6-Only Preferred DHCPv4 option Philip Homburg
- Re: [v6ops] [dhcwg] IPv6-Only Preferred DHCPv4 op… mohamed.boucadair
- Re: [v6ops] IPv6-Only Preferred DHCPv4 option Bjørn Mork
- Re: [v6ops] [dhcwg] IPv6-Only Preferred DHCPv4 op… Lorenzo Colitti
- Re: [v6ops] [dhcwg] IPv6-Only Preferred DHCPv4 op… mohamed.boucadair
- Re: [v6ops] IPv6-Only Preferred DHCPv4 option Michael Richardson
- Re: [v6ops] [dhcwg] IPv6-Only Preferred DHCPv4 op… Michael Richardson
- Re: [v6ops] [dhcwg] IPv6-Only Preferred DHCPv4 op… Lorenzo Colitti
- Re: [v6ops] IPv6-Only Preferred DHCPv4 option Lorenzo Colitti
- Re: [v6ops] [dhcwg] IPv6-Only Preferred DHCPv4 op… Lorenzo Colitti
- Re: [v6ops] [dhcwg] IPv6-Only Preferred DHCPv4 op… Ted Lemon
- Re: [v6ops] [dhcwg] IPv6-Only Preferred DHCPv4 op… Roy Marples
- Re: [v6ops] [dhcwg] IPv6-Only Preferred DHCPv4 op… Roy Marples
- Re: [v6ops] [dhcwg] IPv6-Only Preferred DHCPv4 op… Lorenzo Colitti
- Re: [v6ops] [dhcwg] IPv6-Only Preferred DHCPv4 op… Roy Marples
- Re: [v6ops] IPv6-Only Preferred DHCPv4 option Simon Hobson
- Re: [v6ops] IPv6-Only Preferred DHCPv4 option Jen Linkova
- Re: [v6ops] IPv6-Only Preferred DHCPv4 option Jen Linkova
- Re: [v6ops] IPv6-Only Preferred DHCPv4 option Jen Linkova
- Re: [v6ops] [dhcwg] IPv6-Only Preferred DHCPv4 op… Lorenzo Colitti
- Re: [v6ops] IPv6-Only Preferred DHCPv4 option Mark Smith
- Re: [v6ops] IPv6-Only Preferred DHCPv4 option Ted Lemon
- Re: [v6ops] IPv6-Only Preferred DHCPv4 option Mark Smith
- Re: [v6ops] IPv6-Only Preferred DHCPv4 option Ted Lemon
- Re: [v6ops] IPv6-Only Preferred DHCPv4 option Mark Smith
- Re: [v6ops] [dhcwg] IPv6-Only Preferred DHCPv4 op… Jen Linkova
- Re: [v6ops] [dhcwg] IPv6-Only Preferred DHCPv4 op… Lorenzo Colitti
- Re: [v6ops] [dhcwg] IPv6-Only Preferred DHCPv4 op… mohamed.boucadair
- Re: [v6ops] IPv6-Only Preferred DHCPv4 option Lorenzo Colitti
- Re: [v6ops] IPv6-Only Preferred DHCPv4 option Philip Homburg
- Re: [v6ops] IPv6-Only Preferred DHCPv4 option Philip Homburg
- Re: [v6ops] [dhcwg] IPv6-Only Preferred DHCPv4 op… Lorenzo Colitti
- Re: [v6ops] [dhcwg] IPv6-Only Preferred DHCPv4 op… mohamed.boucadair
- Re: [v6ops] IPv6-Only Preferred DHCPv4 option Gert Doering
- Re: [v6ops] IPv6-Only Preferred DHCPv4 option Philip Homburg
- Re: [v6ops] IPv6-Only Preferred DHCPv4 option Ted Lemon
- Re: [v6ops] IPv6-Only Preferred DHCPv4 option Gert Doering
- Re: [v6ops] IPv6-Only Preferred DHCPv4 option Bernie Volz (volz)
- Re: [v6ops] [dhcwg] IPv6-Only Preferred DHCPv4 op… Bernie Volz (volz)
- Re: [v6ops] IPv6-Only Preferred DHCPv4 option Philip Homburg
- Re: [v6ops] [dhcwg] IPv6-Only Preferred DHCPv4 op… Bernie Volz (volz)
- Re: [v6ops] [dhcwg] IPv6-Only Preferred DHCPv4 op… Michael Richardson
- Re: [v6ops] [dhcwg] IPv6-Only Preferred DHCPv4 op… Bernie Volz (volz)
- Re: [v6ops] IPv6-Only Preferred DHCPv4 option Ted Lemon
- Re: [v6ops] [dhcwg] IPv6-Only Preferred DHCPv4 op… Ted Lemon
- Re: [v6ops] IPv6-Only Preferred DHCPv4 option Bernie Volz (volz)
- Re: [v6ops] IPv6-Only Preferred DHCPv4 option Lorenzo Colitti
- Re: [v6ops] IPv6-Only Preferred DHCPv4 option Ted Lemon
- Re: [v6ops] IPv6-Only Preferred DHCPv4 option Simon Hobson
- Re: [v6ops] IPv6-Only Preferred DHCPv4 option Bernie Volz (volz)
- Re: [v6ops] IPv6-Only Preferred DHCPv4 option Jen Linkova
- Re: [v6ops] IPv6-Only Preferred DHCPv4 option Jen Linkova
- Re: [v6ops] IPv6-Only Preferred DHCPv4 option Ted Lemon
- Re: [v6ops] [dhcwg] IPv6-Only Preferred DHCPv4 op… Jen Linkova
- Re: [v6ops] IPv6-Only Preferred DHCPv4 option Jen Linkova
- Re: [v6ops] IPv6-Only Preferred DHCPv4 option Ted Lemon
- Re: [v6ops] IPv6-Only Preferred DHCPv4 option Bernie Volz (volz)
- Re: [v6ops] IPv6-Only Preferred DHCPv4 option Jen Linkova
- Re: [v6ops] [dhcwg] IPv6-Only Preferred DHCPv4 op… Lorenzo Colitti
- Re: [v6ops] [dhcwg] IPv6-Only Preferred DHCPv4 op… Lorenzo Colitti
- Re: [v6ops] IPv6-Only Preferred DHCPv4 option Lorenzo Colitti
- Re: [v6ops] [dhcwg] IPv6-Only Preferred DHCPv4 op… Mark Smith
- Re: [v6ops] IPv6-Only Preferred DHCPv4 option Bernie Volz (volz)
- Re: [v6ops] [dhcwg] IPv6-Only Preferred DHCPv4 op… Ted Lemon
- Re: [v6ops] IPv6-Only Preferred DHCPv4 option Ted Lemon
- Re: [v6ops] IPv6-Only Preferred DHCPv4 option Bernie Volz (volz)
- Re: [v6ops] IPv6-Only Preferred DHCPv4 option Ted Lemon
- Re: [v6ops] IPv6-Only Preferred DHCPv4 option Fred Baker
- Re: [v6ops] IPv6-Only Preferred DHCPv4 option Ted Lemon
- Re: [v6ops] IPv6-Only Preferred DHCPv4 option Bernie Volz (volz)
- Re: [v6ops] IPv6-Only Preferred DHCPv4 option Ted Lemon
- Re: [v6ops] IPv6-Only Preferred DHCPv4 option Lorenzo Colitti
- Re: [v6ops] IPv6-Only Preferred DHCPv4 option Lorenzo Colitti
- Re: [v6ops] IPv6-Only Preferred DHCPv4 option Gábor LENCSE
- Re: [v6ops] IPv6-Only Preferred DHCPv4 option Ted Lemon
- Re: [v6ops] IPv6-Only Preferred DHCPv4 option Lorenzo Colitti
- Re: [v6ops] IPv6-Only Preferred DHCPv4 option Ted Lemon
- Re: [v6ops] IPv6-Only Preferred DHCPv4 option Bernie Volz (volz)
- Re: [v6ops] IPv6-Only Preferred DHCPv4 option Ted Lemon
- Re: [v6ops] IPv6-Only Preferred DHCPv4 option Tomek Mrugalski
- Re: [v6ops] [dhcwg] IPv6-Only Preferred DHCPv4 op… Tomek Mrugalski
- Re: [v6ops] [dhcwg] IPv6-Only Preferred DHCPv4 op… Tomek Mrugalski
- Re: [v6ops] [dhcwg] IPv6-Only Preferred DHCPv4 op… Ted Lemon
- Re: [v6ops] [dhcwg] IPv6-Only Preferred DHCPv4 op… Tomek Mrugalski
- Re: [v6ops] [dhcwg] IPv6-Only Preferred DHCPv4 op… Ted Lemon
- Re: [v6ops] IPv6-Only Preferred DHCPv4 option Jen Linkova
- Re: [v6ops] [dhcwg] IPv6-Only Preferred DHCPv4 op… Tomek Mrugalski
- Re: [v6ops] [dhcwg] IPv6-Only Preferred DHCPv4 op… Tomek Mrugalski
- Re: [v6ops] [dhcwg] IPv6-Only Preferred DHCPv4 op… Lorenzo Colitti
- Re: [v6ops] [dhcwg] IPv6-Only Preferred DHCPv4 op… STARK, BARBARA H
- Re: [v6ops] [dhcwg] IPv6-Only Preferred DHCPv4 op… Ted Lemon