Re: Centrally assigned ULAs for automotives and other environments

2011-09-29 Thread Joel jaeggli
On 9/28/11 19:09 , Christopher Morrow wrote: On Wed, Sep 28, 2011 at 8:51 PM, Dan Wing dw...@cisco.com wrote: It's too bad computer science is not a science, or we would actually look at the past, and this mistakes that were made, to build tomorrow's systems. ALGs were a mistake. I like

Re: Centrally assigned ULAs for automotives and other environments

2011-09-29 Thread Roland Bless
Hi Brian, Am 28.09.2011 23:07, schrieb Brian E Carpenter: On 2011-09-28 23:08, Roland Bless wrote: ... The current ULA-C... What do you mean? There is no current definition of ULA-C. That's right :-) I was referring to the definition in RFC 4193 with L=0, i.e., centrally assigned ULAs. I

Re: Centrally assigned ULAs for automotives and other environments

2011-09-29 Thread Jeroen Massar
On 2011-09-29 09:20 , Roland Bless wrote: Hi Brian, Am 28.09.2011 23:07, schrieb Brian E Carpenter: On 2011-09-28 23:08, Roland Bless wrote: ... The current ULA-C... What do you mean? There is no current definition of ULA-C. That's right :-) I was referring to the definition in RFC

Re: Centrally assigned ULAs for automotives and other, environments

2011-09-29 Thread Ray Hunter
...@cisco.com Cc: '6man'ipv6@ietf.org Subject: Re: Centrally assigned ULAs for automotives and other environments Message-ID:4e839c19.9050...@gmail.com Content-Type: text/plain; charset=UTF-8 snip I would think that you would actually want an application server at the boundary, acting

Re: Centrally assigned ULAs for automotives and other environments

2011-09-29 Thread Roland Bless
Hi Jeroen, Am 29.09.2011 09:30, schrieb Jeroen Massar: You do realize that the RIRs are providing exactly what you describe? :) - globally guaranteed unique (due to registry) large address prefixes Which is why from my information ULA-C has also been abandoned, as it already is something

Re: Centrally assigned ULAs for automotives and other environments

2011-09-29 Thread Dan Lanciani
Jeroen Massar jer...@unfix.org wrote: |On 2011-09-29 09:20 , Roland Bless wrote: | Hi Brian, | | Am 28.09.2011 23:07, schrieb Brian E Carpenter: | On 2011-09-28 23:08, Roland Bless wrote: | ... | The current ULA-C... | | What do you mean? There is no current definition of ULA-C. | | That's

Re: Centrally assigned ULAs for automotives and other environments

2011-09-29 Thread Christopher Morrow
On Thu, Sep 29, 2011 at 4:59 AM, Roland Bless roland.bl...@kit.edu wrote: Hi Jeroen, Am 29.09.2011 09:30, schrieb Jeroen Massar: You do realize that the RIRs are providing exactly what you describe? :)  - globally guaranteed unique (due to registry) large address prefixes Which is why from

Re: Centrally assigned ULAs for automotives and other environments

2011-09-29 Thread Roland Bless
Hi, On 29.09.2011 15:44, Christopher Morrow wrote: have to help in the educational process a bit, but hiding behind 'private addressing' and 'we never want to ... oops, we connected to the internet!' just isn't working today. As a general statement fine, but in our use case you a) need stable

Re: Centrally assigned ULAs for automotives and other environments

2011-09-29 Thread Cameron Byrne
On Sep 28, 2011 11:26 PM, Joel jaeggli joe...@bogus.com wrote: On 9/28/11 19:09 , Christopher Morrow wrote: On Wed, Sep 28, 2011 at 8:51 PM, Dan Wing dw...@cisco.com wrote: It's too bad computer science is not a science, or we would actually look at the past, and this mistakes that were

Re: Centrally assigned ULAs for automotives and other environments

2011-09-29 Thread Christopher Morrow
On Thu, Sep 29, 2011 at 10:09 AM, Roland Bless roland.bl...@kit.edu wrote: Hi, On 29.09.2011 15:44, Christopher Morrow wrote: have to help in the educational process a bit, but hiding behind 'private addressing' and 'we never want to ... oops, we connected to the internet!' just isn't

RE: Centrally assigned ULAs for automotives and other environments

2011-09-29 Thread Dan Wing
-Original Message- From: Roland Bless [mailto:roland.bl...@kit.edu] Sent: Thursday, September 29, 2011 1:15 AM To: Dan Wing Cc: 'Joel M. Halpern'; '6man' Subject: Re: Centrally assigned ULAs for automotives and other environments Hi Dan, On 28.09.2011 23:28, Dan Wing wrote

Re: Centrally assigned ULAs for automotives and other environments

2011-09-29 Thread Joel jaeggli
On 9/29/11 06:44 , Christopher Morrow wrote: On Thu, Sep 29, 2011 at 4:59 AM, Roland Bless roland.bl...@kit.edu wrote: Hi Jeroen, Am 29.09.2011 09:30, schrieb Jeroen Massar: You do realize that the RIRs are providing exactly what you describe? :) - globally guaranteed unique (due to

Re: Centrally assigned ULAs for automotives and other environments

2011-09-29 Thread Joel jaeggli
On 9/29/11 06:20 , Dan Lanciani wrote: Jeroen Massar jer...@unfix.org wrote: |On 2011-09-29 09:20 , Roland Bless wrote: | Hi Brian, | | Am 28.09.2011 23:07, schrieb Brian E Carpenter: | On 2011-09-28 23:08, Roland Bless wrote: | ... | The current ULA-C... | | What do you mean? There

Re: Centrally assigned ULAs for automotives and other environments

2011-09-29 Thread Randy Bush
Maybe we can start with new names; ULA-S (Self-assigned) - Statistically unique prefix with local algorithmic assignment at no cost, you assign a prefix yourself. ULA-R (Registered) - Unique Prefix registered to an Organizations through the RIRs, a prefix is assigned to you. ULA-M

Re: Centrally assigned ULAs for automotives and other environments

2011-09-29 Thread Dan Lanciani
Joel jaeggli joe...@bogus.com wrote: | Jeroen Massar jer...@unfix.org wrote: | | |On 2011-09-29 09:20 , Roland Bless wrote: | | Hi Brian, | | | | Am 28.09.2011 23:07, schrieb Brian E Carpenter: | | On 2011-09-28 23:08, Roland Bless wrote: | | ... | | The current ULA-C... | | | | What do you

Re: Centrally assigned ULAs for automotives and other, environments

2011-09-28 Thread Thierry Ernst
Message: 3 Date: Tue, 27 Sep 2011 15:36:31 +0200 From: Roland Blessroland.bl...@kit.edu To: 6manipv6@ietf.org Subject: Centrally assigned ULAs for automotives and other environments Message-ID:4e81d15f.6090...@kit.edu Content-Type: text/plain; charset=ISO-8859-15 Hi, it seems that there is currently

Re: Centrally assigned ULAs for automotives and other, environments

2011-09-28 Thread Roland Bless
Hi, On 27.09.2011 23:25, Warren Kumari wrote: Did you follow the link in my earlier email[0]? : Comprehensive Experimental Analyses of Automotive Attack Surfaces -- http://www.autosec.org/pubs/cars-usenixsec2011.pdf And a vide of same (well worth watching) from USENIX Security:

Re: Centrally assigned ULAs for automotives and other environments

2011-09-28 Thread Roland Bless
Hi David, On 27.09.2011 23:28, David Farmer wrote: I'm warming to the idea. However if we do something like this for the manufacturing world we better move forward normal ULA-C for the The current ULA-C has the problem of allocating /48s. A manufacturer would have to request many of them and

Re: Centrally assigned ULAs for automotives and other environments

2011-09-28 Thread Roland Bless
Hi David, On 28.09.2011 00:06, David Farmer wrote: Also, the RIR policies focus on Internet connected uses of addresses. Sometimes the policies outright prohibit non-connected use. Or if they don't, there are written in ways that to the uninitiated think the policies prohibit such use.

Re: Centrally assigned ULAs for automotives and other, environments

2011-09-28 Thread Roland Bless
Hi Thierry, On 28.09.2011 11:05, Thierry Ernst wrote: Car will have multiple prefixes, for different usages. The car makers Our scenario is roughly like this: - the car has an IP-based on board network between its ECUs for internal control. This directly impacts the safety of the car in

RE: Centrally assigned ULAs for automotives and other environments

2011-09-28 Thread Dan Lanciani
Eric Vyncke (evyncke) evyn...@cisco.com wrote: |The 'only' advantage of ULA vs. GUA is ease of filtering on a very short and well-known prefix. Well, the other advantage is cost, and that's exactly why we will likely never have useful centrally allocated ULAs. If the ULAs were cheap they would

Re: Centrally assigned ULAs for automotives and other environments

2011-09-28 Thread t.petch
- Original Message - From: Roland Bless roland.bl...@kit.edu To: David Farmer far...@umn.edu Cc: 6man ipv6@ietf.org Sent: Wednesday, September 28, 2011 12:08 PM Hi David, On 27.09.2011 23:28, David Farmer wrote: I'm warming to the idea. However if we do something like this for

Re: Centrally assigned ULAs for automotives and other environments

2011-09-28 Thread Roland Bless
Hi Tom, On 28.09.2011 14:44, t.petch wrote: There was a recent post on OPSAWG from the IEEE RAC about their need to ensure that they do not run out of OUI; it was Cloud Computing that triggered their concern, but this might as well. Thanks for the hint. I see the point. The problem is caused

Re: Centrally assigned ULAs for automotives and other environments

2011-09-28 Thread David Farmer
On Sep 28, 2011, at 5:08, Roland Bless roland.bl...@kit.edu wrote: Hi David, On 27.09.2011 23:28, David Farmer wrote: I'm warming to the idea. However if we do something like this for the manufacturing world we better move forward normal ULA-C for the The current ULA-C has the problem

Re: Centrally assigned ULAs for automotives and other environments

2011-09-28 Thread Roland Bless
Hi David, On 28.09.2011 20:24, David Farmer wrote: Yes, OUI exhaustion isn't and shouldn't be a problem unless we make it one. My point was if you implement your proposal without doing a more classic ULA-C also, you will create demand for OUIs from the enterprise world just so they can get

Re: Centrally assigned ULAs for automotives and other environments

2011-09-28 Thread Joel M. Halpern
There seem to be a number of assumptions, some of which I suspect I am misunderstanding, in the case being described. I tend to make two assumptions: 1) Even low end intra-automotive devices can cope with multiple addresses 2) Even low end automotive-internal devices will need to communicate

RE: Centrally assigned ULAs for automotives and other environments

2011-09-28 Thread Manfredi, Albert E
:10 PM To: Roland Bless Cc: 6man Subject: Re: Centrally assigned ULAs for automotives and other environments There seem to be a number of assumptions, some of which I suspect I am misunderstanding, in the case being described. I tend to make two assumptions: 1) Even low end intra-automotive

Re: Centrally assigned ULAs for automotives and other environments

2011-09-28 Thread Joel M. Halpern
, easily recognizable private IP addresses are a really good feature. Bert -Original Message- From: ipv6-boun...@ietf.org [mailto:ipv6-boun...@ietf.org] On Behalf Of Joel M. Halpern Sent: Wednesday, September 28, 2011 4:10 PM To: Roland Bless Cc: 6man Subject: Re: Centrally assigned ULAs

Re: Centrally assigned ULAs for automotives and other environments

2011-09-28 Thread David Farmer
On 9/28/11 15:25 CDT, Manfredi, Albert E wrote: I dunno about automotive, but I'm with Roland on the requirement to keep the internal controls strictly isolated from the Internet in other platforms. Yes, there is remote condition monitoring going on, but NEVER directly from the Internet to

Re: Centrally assigned ULAs for automotives and other environments

2011-09-28 Thread Roland Bless
Hi Joel, On 28.09.2011 22:10, Joel M. Halpern wrote: There seem to be a number of assumptions, some of which I suspect I am misunderstanding, in the case being described. Yes, I guess so. I tend to make two assumptions: 1) Even low end intra-automotive devices can cope with multiple

Re: Centrally assigned ULAs for automotives and other environments

2011-09-28 Thread Brian E Carpenter
On 2011-09-28 23:08, Roland Bless wrote: ... The current ULA-C... What do you mean? There is no current definition of ULA-C. Brian IETF IPv6 working group mailing list ipv6@ietf.org Administrative Requests:

RE: Centrally assigned ULAs for automotives and other environments

2011-09-28 Thread Dan Wing
-Original Message- From: ipv6-boun...@ietf.org [mailto:ipv6-boun...@ietf.org] On Behalf Of Roland Bless Sent: Wednesday, September 28, 2011 2:04 PM To: Joel M. Halpern Cc: 6man Subject: Re: Centrally assigned ULAs for automotives and other environments Hi Joel, On 28.09.2011

Re: Centrally assigned ULAs for automotives and other environments

2011-09-28 Thread David Farmer
On 9/28/11 14:57 CDT, Roland Bless wrote: Hi David, On 28.09.2011 20:24, David Farmer wrote: Yes, OUI exhaustion isn't and shouldn't be a problem unless we make it one. My point was if you implement your proposal without doing a more classic ULA-C also, you will create demand for OUIs from

RE: Centrally assigned ULAs for automotives and other environments

2011-09-28 Thread Manfredi, Albert E
Dan Wing wrote: ALGs are harmful and the NAT industry has over a decade experience that shows ALGs are harmful. ALGs have prevented proper operation of SIP, FTP, and a variety of other protocols. Harmful in your sense of the word is good, in some circles. Remember, we are only talking about

Re: Centrally assigned ULAs for automotives and other environments

2011-09-28 Thread Brian E Carpenter
On 2011-09-29 10:28, Dan Wing wrote: -Original Message- From: ipv6-boun...@ietf.org [mailto:ipv6-boun...@ietf.org] On Behalf Of Roland Bless Sent: Wednesday, September 28, 2011 2:04 PM To: Joel M. Halpern Cc: 6man Subject: Re: Centrally assigned ULAs for automotives and other

RE: Centrally assigned ULAs for automotives and other environments

2011-09-28 Thread Dan Wing
-Original Message- From: Manfredi, Albert E [mailto:albert.e.manfr...@boeing.com] Sent: Wednesday, September 28, 2011 2:50 PM To: Dan Wing; 'Roland Bless'; 'Joel M. Halpern' Cc: '6man' Subject: RE: Centrally assigned ULAs for automotives and other environments Dan Wing wrote

Re: Centrally assigned ULAs for automotives and other environments

2011-09-28 Thread Christopher Morrow
On Wed, Sep 28, 2011 at 8:51 PM, Dan Wing dw...@cisco.com wrote: It's too bad computer science is not a science, or we would actually look at the past, and this mistakes that were made, to build tomorrow's systems.  ALGs were a mistake. I like algs for some things but agree with dan here...

Centrally assigned ULAs for automotives and other environments

2011-09-27 Thread Roland Bless
Hi, it seems that there is currently not much interest in ULA-Cs (centrally assigned ULAs). I came across several use cases, where manufacturers (e.g, those of cars, airplanes, or smart metering environments) would need internal/closed IPv6-based networks (maybe only for internal control and

Re: Centrally assigned ULAs for automotives and other environments

2011-09-27 Thread Christopher Morrow
On Tue, Sep 27, 2011 at 9:36 AM, Roland Bless roland.bl...@kit.edu wrote: Hi, it seems that there is currently not much interest in ULA-Cs (centrally assigned ULAs). I came across several use cases, where manufacturers (e.g, those of cars, airplanes, or smart metering environments) would

Re: Centrally assigned ULAs for automotives and other environments

2011-09-27 Thread Jeroen Massar
On 2011-09-27 15:36 , Roland Bless wrote: Hi, it seems that there is currently not much interest in ULA-Cs (centrally assigned ULAs). I came across several use cases, where manufacturers (e.g, those of cars, airplanes, or smart metering environments) would need internal/closed IPv6-based

Re: Centrally assigned ULAs for automotives and other environments

2011-09-27 Thread Roland Bless
Hi Christopher, On 27.09.2011 15:49, Christopher Morrow wrote: why can't these just use globally unique addresses? They can, but there are similar reasons for using ULAs: - They are not intended to be routed in the Internet - They use a well-known prefix to allow for easy filtering at site

Re: Centrally assigned ULAs for automotives and other environments

2011-09-27 Thread Roland Bless
Hi Jeroen, On 27.09.2011 15:51, Jeroen Massar wrote: it seems that there is currently not much interest in ULA-Cs (centrally assigned ULAs). I came across several use cases, where manufacturers (e.g, those of cars, airplanes, or smart metering environments) would need internal/closed

RE: Centrally assigned ULAs for automotives and other environments

2011-09-27 Thread George, Wes
From: ipv6-boun...@ietf.org On Behalf Of Roland Bless but there are similar reasons for using ULAs: - They are not intended to be routed in the Internet - They use a well-known prefix to allow for easy filtering at site boundaries. WEG] from the below it sounds like the first item isn't always

Re: Centrally assigned ULAs for automotives and other environments

2011-09-27 Thread Christopher Morrow
On Tue, Sep 27, 2011 at 10:53 AM, George, Wes wesley.geo...@twcable.com wrote: From: ipv6-boun...@ietf.org On Behalf Of Roland Bless but there are similar reasons for using ULAs: - They are not intended to be routed in the Internet - They use a well-known prefix to allow for easy filtering at

Re: Centrally assigned ULAs for automotives and other environments

2011-09-27 Thread Cameron Byrne
On Sep 27, 2011 6:49 AM, Christopher Morrow christopher.mor...@gmail.com wrote: On Tue, Sep 27, 2011 at 9:36 AM, Roland Bless roland.bl...@kit.edu wrote: Hi, it seems that there is currently not much interest in ULA-Cs (centrally assigned ULAs). I came across several use cases, where

Centrally assigned ULAs for automotives and other, environments

2011-09-27 Thread Ray Hunter
Subject: Centrally assigned ULAs for automotives and other environments Message-ID:4e81d15f.6090...@kit.edu Content-Type: text/plain; charset=ISO-8859-15 Hi, it seems that there is currently not much interest in ULA-Cs (centrally assigned ULAs). I came across several use cases, where

RE: Centrally assigned ULAs for automotives and other, environments

2011-09-27 Thread Rob V
was referring to. -Original Message- From: ipv6-boun...@ietf.org [mailto:ipv6-boun...@ietf.org] On Behalf Of Ray Hunter Sent: September-27-11 11:24 AM To: Roland Bless Cc: 6man Subject: Centrally assigned ULAs for automotives and other, environments Who are we trying to kid about there being

Re: Centrally assigned ULAs for automotives and other, environments

2011-09-27 Thread Warren Kumari
] -Original Message- From: ipv6-boun...@ietf.org [mailto:ipv6-boun...@ietf.org] On Behalf Of Ray Hunter Sent: September-27-11 11:24 AM To: Roland Bless Cc: 6man Subject: Centrally assigned ULAs for automotives and other, environments Who are we trying to kid about there being no need

Re: Centrally assigned ULAs for automotives and other, environments

2011-09-27 Thread Jeroen Massar
On 2011-09-27 17:36 , Rob V wrote: That doesn't mean all the systems within the car need to speak to the outside world. The engine thermometer doesn't care about traffic or the location of the nearest train station. It just needs to tell the dashboard its current read-out. I presume those

RE: Centrally assigned ULAs for automotives and other environments

2011-09-27 Thread Eric Vyncke (evyncke)
:37 To: 6man Subject: Centrally assigned ULAs for automotives and other environments Hi, For several reasons (esp. security) those networks should operate isolated and independent from the Internet. In some cases IETF IPv6

Re: Centrally assigned ULAs for automotives and other environments

2011-09-27 Thread Roland Bless
Hi Wes, On 27.09.2011 16:53, George, Wes wrote: WEG] A firewall/gateway can do this regardless of the address space that you are using. What you're proposing is a use case similar to the IPv4 model of using RFC1918 addresses + NAT/NAPT at the edge of the private network, and you will not

Re: Centrally assigned ULAs for automotives and other, environments

2011-09-27 Thread Roland Bless
Hi Ray, On 27.09.2011 17:23, Ray Hunter wrote: FYI A consortium in the Netherlands have just announced a scheme that is planning to link in-car navigation systems with traffic control and information systems, and also public transport systems, so that if there's a traffic jam and it is going

Re: Centrally assigned ULAs for automotives and other, environments

2011-09-27 Thread Roland Bless
Hi, On 27.09.2011 17:36, Rob V wrote: That doesn't mean all the systems within the car need to speak to the outside world. The engine thermometer doesn't care about traffic or the location of the nearest train station. It just needs to tell the dashboard its current read-out. I presume

Re: Centrally assigned ULAs for automotives and other, environments

2011-09-27 Thread Margaret Wasserman
On Sep 27, 2011, at 3:15 PM, Manfredi, Albert E wrote: Doesn't seem logical to conclude that a NAT would be involved in any of this. But even if it is, what's wrong with a basic NAT, i.e. one that provides a simple one to one mapping for a subset of the internal addresses? If you do need to

Re: Centrally assigned ULAs for automotives and other environments

2011-09-27 Thread Roland Bless
Hi Wes, see inline. On 27.09.2011 19:43, George, Wes wrote: From: Roland Bless [mailto:roland.bl...@kit.edu] all that I'm proposing is to use a stable internal addressing for the onboard network (no matter how the car is currently connected to the Internet) and to use a security

Re: Centrally assigned ULAs for automotives and other, environments

2011-09-27 Thread Warren Kumari
On Sep 27, 2011, at 4:32 PM, Roland Bless wrote: Hi, On 27.09.2011 17:54, Warren Kumari wrote: That doesn't mean all the systems within the car need to speak to the outside world. The engine thermometer doesn't care about traffic or the location of the nearest train station. True, but

Re: Centrally assigned ULAs for automotives and other environments

2011-09-27 Thread David Farmer
On 9/27/11 08:36 CDT, Roland Bless wrote: Hi, it seems that there is currently not much interest in ULA-Cs (centrally assigned ULAs). That interest varies significantly I would suggest you are correct int he IETF and service provider worlds. However, in the enterprise and manufacturing

Re: Centrally assigned ULAs for automotives and other environments

2011-09-27 Thread David Farmer
On 9/27/11 08:49 CDT, Christopher Morrow wrote: On Tue, Sep 27, 2011 at 9:36 AM, Roland Blessroland.bl...@kit.edu wrote: Hi, it seems that there is currently not much interest in ULA-Cs (centrally assigned ULAs). I came across several use cases, where manufacturers (e.g, those of cars,