Re: [homenet] regarding recursive DHCPv6-PD (and architecture document)

2012-11-13 Thread Brian E Carpenter
On 12/11/2012 17:33, Mark Townsley wrote: > Nice to see a constructive thread with suggested text for the editors of the > homenet arch, thank you. > > I'm concerned with any "issue a warning" type suggestions though. We are > working hard to develop automatic configuration that assumes there is

Re: [homenet] regarding recursive DHCPv6-PD (and architecture document)

2012-11-13 Thread Robert Cragie
+1 to Brian. Falling back to the user left with a broken connection and no feedback is not acceptable. Short cryptic messages may be terse at the point of origin but there is no lack of resources on the internet to elucidate them. Robert On 13/11/2012 8:24 AM, Brian E Carpenter wrote: On 12/

Re: [homenet] regarding recursive DHCPv6-PD (and architecture document)

2012-11-13 Thread Robert Cragie
Mark, I agree with what you say but that still means RPL could be on the table. It seems quite feasible to me that we could have a multi-link route-over subnet using a routing protocol such as RPL with downstream border routers as well. This may seem unlikely with an LLN but is more feasible

Re: [homenet] regarding recursive DHCPv6-PD (and architecture document)

2012-11-13 Thread Ted Lemon
On Nov 13, 2012, at 2:24 AM, Brian E Carpenter wrote: > even if it's the equivalent > of the beeping from a smoke detector whose battery is fading. To which the typical response is to throw the damned thing through the window out of rage after it's been beeping for a couple of hours. No, there

Re: [homenet] regarding recursive DHCPv6-PD (and architecture document)

2012-11-13 Thread Mattia Rossi
Am 13.11.2012 15:14, schrieb Ted Lemon: On Nov 13, 2012, at 2:24 AM, Brian E Carpenter wrote: even if it's the equivalent of the beeping from a smoke detector whose battery is fading. To which the typical response is to throw the damned thing through the window out of rage after it's been be

[homenet] When things go wrong on your homenet

2012-11-13 Thread Michael Thomas
On 11/13/2012 12:24 AM, Brian E Carpenter wrote: On 12/11/2012 17:33, Mark Townsley wrote: Nice to see a constructive thread with suggested text for the editors of the homenet arch, thank you. I'm concerned with any "issue a warning" type suggestions though. We are working hard to develop aut

Re: [homenet] When things go wrong on your homenet

2012-11-13 Thread Dave Taht
On Tue, Nov 13, 2012 at 5:01 PM, Michael Thomas wrote: > On 11/13/2012 12:24 AM, Brian E Carpenter wrote: >> >> On 12/11/2012 17:33, Mark Townsley wrote: >>> >>> Nice to see a constructive thread with suggested text for the editors of >>> the homenet arch, thank you. >>> >>> I'm concerned with any

Re: [homenet] When things go wrong on your homenet

2012-11-13 Thread Mark Townsley
On Nov 13, 2012, at 5:27 PM, Dave Taht wrote: > On Tue, Nov 13, 2012 at 5:01 PM, Michael Thomas wrote: >> On 11/13/2012 12:24 AM, Brian E Carpenter wrote: >>> >>> On 12/11/2012 17:33, Mark Townsley wrote: Nice to see a constructive thread with suggested text for the editors of t

Re: [homenet] regarding recursive DHCPv6-PD (and architecture document)

2012-11-13 Thread Ted Lemon
On Nov 13, 2012, at 9:50 AM, Mattia Rossi wrote: > I still like the idea of a led which is red if no prefix could be received, > orange if a /64 has been assigned, and a prefix has been requested from a > downstream router (no prefix for the downstream router), and green if a > prefix < /64 ha

Re: [homenet] When things go wrong on your homenet

2012-11-13 Thread Randy Turner
Given the "complexity" of a potential home net, a complexity that is often alluded to on the mail list (including below), there will no doubt be "policy" that has to be introduced - a policy language or facility that can be described or communicated by an end user, preferably without technical

[homenet] prefix assignment on home networks

2012-11-13 Thread Randy Turner
Hi All, I've been away from the list for awhile, and am trying to catch up -- is there a reference or quick explanation as to why a "/64" assigned to a home network is considered to be potentially "constrained" somehow ? Thanks, Randy On Nov 13, 2012, at 10:28 AM, Randy Turner wrote: > > G

[homenet] Robustness in Homenet. (triggered by the DHCP-PD discussion).

2012-11-13 Thread Jim Gettys
I've been watching the discussion about recursive DHCPv6-PD with more than a little discomfort; I did not want to throw this bomb until the issue had been discussed in depth (as prefix delegation is a problem we must solve). The hardest problem I've ever had to debug in my home network (by far) wa

Re: [homenet] Robustness in Homenet. (triggered by the DHCP-PD discussion).

2012-11-13 Thread Simon Kelley
On 13/11/12 19:04, Jim Gettys wrote: So the recursive DHCP-PD scheme strikes me as something possibly very fragile. I really, really don't want to repeat the experience I had with having extra DHCP servers, and I would guess few ISP's do either. It seems to me much more robust to flood the key

Re: [homenet] prefix assignment on home networks

2012-11-13 Thread Simon Kelley
On 13/11/12 18:33, Randy Turner wrote: Hi All, I've been away from the list for awhile, and am trying to catch up -- is there a reference or quick explanation as to why a "/64" assigned to a home network is considered to be potentially "constrained" somehow ? Because no IPv6 network can be

Re: [homenet] Robustness in Homenet. (triggered by the DHCP-PD discussion).

2012-11-13 Thread Victor Kuarsingh
On Tue, Nov 13, 2012 at 3:19 PM, Simon Kelley wrote: > On 13/11/12 19:04, Jim Gettys wrote: > > >> So the recursive DHCP-PD scheme strikes me as something possibly very >> fragile. I really, really don't want to repeat the experience I had with >> having extra DHCP servers, and I would guess few I

Re: [homenet] Robustness in Homenet. (triggered by the DHCP-PD discussion).

2012-11-13 Thread Simon Kelley
On 13/11/12 20:48, Victor Kuarsingh wrote: On Tue, Nov 13, 2012 at 3:19 PM, Simon Kelleywrote: Given that hosts are going to want to talk RA or DHCPv6, at least initially, one option down this route has the flood include the unicast address of a single, centralised DHCPv6 server, and routers r

Re: [homenet] Robustness in Homenet. (triggered by the DHCP-PD discussion).

2012-11-13 Thread Ted Lemon
On Nov 13, 2012, at 1:04 PM, Jim Gettys wrote: > So the recursive DHCP-PD scheme strikes me as something possibly very > fragile. I really, really don't want to repeat the experience I had with > having extra DHCP servers, and I would guess few ISP's do either. It seems to me that using bad imp

Re: [homenet] When things go wrong on your homenet

2012-11-13 Thread Michael Thomas
On 11/13/2012 09:22 AM, Mark Townsley wrote: Each and every part of the router must do everything it can to work without bugging the user. it's enough work to bother them for the *really* important stuff like "do I let this device on the network?", "do I allow connectivity with my neighbor", e

Re: [homenet] prefix assignment on home networks

2012-11-13 Thread james woodyatt
On Nov 13, 2012, at 10:33 , Randy Turner wrote: > I've been away from the list for awhile, and am trying to catch up -- is > there a reference or quick explanation as to why a "/64" assigned to a home > network is considered to be potentially "constrained" somehow ? Once upon a time [RFC 3177]

Re: [homenet] prefix assignment on home networks

2012-11-13 Thread Victor Kuarsingh
On 2012-11-13 5:47 PM, "james woodyatt" wrote: > >For my part, I have a hard time foreseeing how the expectation that >residential sites will always have more space to assign than a single /64 >subnet is even remotely reasonable. Far too many service providers are >casting into operational conc

Re: [homenet] prefix assignment on home networks

2012-11-13 Thread Randy Turner
I was thinking that, in an effort to reduce scope to something we can deal with for now, that a /64 would be big enough - and if this prefix is "globally available" on the internet, I think it's much more than the ISPs can get their heads around, at least for now. I understand the limitations

Re: [homenet] prefix assignment on home networks

2012-11-13 Thread Mikael Abrahamsson
On Tue, 13 Nov 2012, james woodyatt wrote: For my part, I have a hard time foreseeing how the expectation that residential sites will always have more space to assign than a single /64 subnet is even remotely reasonable. Far too many service providers are casting into operational concrete top

Re: [homenet] regarding recursive DHCPv6-PD (and architecture document)

2012-11-13 Thread Mikael Abrahamsson
On Tue, 13 Nov 2012, Mattia Rossi wrote: I still like the idea of a led which is red if no prefix could be received, orange if a /64 has been assigned, and a prefix has been requested from a downstream router (no prefix for the downstream router), and green if a prefix < /64 has been assigned

Re: [homenet] prefix assignment on home networks

2012-11-13 Thread joel jaeggli
On 11/13/12 9:20 PM, Mikael Abrahamsson wrote: Why do you believe we need coordination between service providers to permit multihomed services to work well? I thought the whole idea was to handle multiple upstream prefixes and make sure everything is routed to the correct ISP? If coordinatio