Re: Randomness and uniqueness

2002-02-08 Thread Alexandru Petrescu
Hi Francis, thanks for following up on this. Francis Dupont [EMAIL PROTECTED] writes: -to this probability one should add administrative probability where same prefixes are accidentally assigned to two entities. = this is like link-layer address collision (for instance two Ethernet

Re: [MMUSIC] RE: Last Call: Support for IPv6 in SDP to Proposed Standard

2002-02-08 Thread Pekka Pessi
Hello Gonzales, In message [EMAIL PROTECTED] Gonzalo Camarillo [EMAIL PROTECTED] writes: Therefore, comments about the actual format are very welcome. Other comments are interesting for other documents, but I do not think the IESG has to be involved in such a discussion until those

Re: [MMUSIC] RE: Last Call: Support for IPv6 in SDP to Proposed Standard

2002-02-08 Thread Gonzalo Camarillo
Hi, The draft defines how to express IPv6 addresses in SDP. How you use this format is up to the application (i.e., outside the scope of this draft). Remember that SDP is used by many protocols (SIP, SAP, MGCP, RTSP). A good example is SIP. An MMUSIC document defines how to use SDP in

Re: Randomness and uniqueness

2002-02-08 Thread Alexandru Petrescu
Francis Dupont [EMAIL PROTECTED] writes: = I believe you've mixed in a confusing way the uniqueness of an address/IID on a link (guaranteed by DAD) and the uniqueness of a CGA from the security point of view. They are very different questions. Ok, I didn't want to generate any confusion. If

RE: IPv6 Addr/Prefix clarification

2002-02-08 Thread Steve Deering
At 11:18 AM -0800 1/23/02, JJ Behrens wrote: Please forgive me for being a newbie, but it seems wise to allow subnetting of the lower 64 bits. Afterall, it would be terrible if my dialup ISP assigned a /64 to me, and I had to rely on some IPv6 mythical NAT to do subnetting! The IAB/IESG

RE: IPv6 Addr/Prefix clarification

2002-02-08 Thread Tim Chown
On Thu, 7 Feb 2002, Steve Deering wrote: Would you apply the RFC3194 0.8 HD ratio to subnets within a single ISP? No, the plan as I understand it is to apply the HD ratio to the number of /48s, when evaluating an ISP's application for more address space. So if an ISP came along and said we

RE: IPv6 Addr/Prefix clarification

2002-02-08 Thread Steve Deering
At 6:03 PM + 2/1/02, Tim Chown wrote: If that's static /48's, the /29 boundary will need revision...(and certainly a /35 would be useless to any medium ISP). Yes, those boundaries are currently under discussion in the registry community, and I certainly expect them to change. (Though as

RE: Randomness and uniqueness

2002-02-08 Thread marcelo bagnulo
-Mensaje original- De: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]En nombre de Francis Dupont Enviado el: jueves, 07 de febrero de 2002 22:41 Para: Alexandru Petrescu CC: [EMAIL PROTECTED] Asunto: Re: Randomness and uniqueness = if this argument is used in order to avoid (or to

Re: Randomness and uniqueness

2002-02-08 Thread Francis Dupont
In your previous mail you wrote: PPS: with respect to security there's ongoing discussion on Mobile IP, around a novel method to generate addresses (Computationally Generated Addresses). = there is no reason to avoid DAD on CGAs: CGAs and RFC 3041 are

Re: Randomness and uniqueness

2002-02-08 Thread Francis Dupont
In your previous mail you wrote: = the probability argument gives no guarantee. Nothing can give you full guarantees = globally unique IIDs give a full guarantee as I explained in a previous mail (with what is this guarantee). There is no option that always work, all the

RE: Randomness and uniqueness

2002-02-08 Thread marcelo bagnulo
-Mensaje original- De: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] Enviado el: viernes, 08 de febrero de 2002 18:29 Para: marcelo bagnulo CC: Alexandru Petrescu; [EMAIL PROTECTED] Asunto: Re: Randomness and uniqueness In your previous mail you wrote: if you do agree

RE: Randomness and uniqueness

2002-02-08 Thread marcelo bagnulo
-Mensaje original- De: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] In your previous mail you wrote: = the probability argument gives no guarantee. Nothing can give you full guarantees = globally unique IIDs give a full guarantee as I explained in a previous mail

Re: IPv6 Addr/Prefix clarification

2002-02-08 Thread Steve Deering
At 5:02 PM +0100 2/1/02, Tomas Lund wrote: On Fri, 1 Feb 2002, Robert Elz wrote: | 3. Is it ok to use longer than a /64 for links ? That is, the suggestion isn't to pressure people to use /126 or something (as your #2 would do), nor to tell people that it isn't OK to use a /64 /127

Re: IPv6 Addr/Prefix clarification

2002-02-08 Thread Steve Deering
At 1:39 PM -0500 2/1/02, Keith Moore wrote: To me it seems entirely plausible that networks consisting of large numbers of point-to-point links, assembled into trees, will be all the rage in a few years. Even Ethernet is becoming more a point-to-point technology rather than a bus technology.

I-D ACTION:draft-savola-ipv6-127-prefixlen-00.txt (fwd)

2002-02-08 Thread Pekka Savola
These issues have also come up in the addr/prefix discussion; the issue was originally discussed in November. What do others think -- is this something worth noting? -- Pekka Savola Tell me of difficulties surmounted, Netcore Oy not those you stumble over and

Re: IPv6 Addr/Prefix clarification

2002-02-08 Thread Steve Deering
At 3:54 PM -0500 2/8/02, Keith Moore wrote: So if an ISP came along and said we have a million customers signed up, we want to give them static /48 prefixes to their current home xDSL lines, and thus we'd like a /23, that should be approved? (2^25^0.8 ~= 1M) Yes, absolutely, assuming