draft-ietf-ipv6-deprecate-rh0-01-candidate-01

2007-06-13 Thread Joe Abley
Here's a revised candidate -01. As before, I have not submitted this to the i-d repository, but offer it here first instead in order to make sure my changes seem reasonable. Substantive changes include: + removed section 3.1 (Origination), since hosts will originate any junk they want,

Re: draft-ietf-ipv6-deprecate-rh0-01-candidate-01

2007-06-13 Thread Jun-ichiro itojun Hagino
Here's a revised candidate -01. As before, I have not submitted this to the i-d repository, but offer it here first instead in order to make sure my changes seem reasonable. (snip) I'm very happy with the 01-candidate-01. concise, straight to the point. itojun

Re: draft-ietf-ipv6-deprecate-rh0-01-candidate-01

2007-06-13 Thread George V. Neville-Neil
I am happy with the revisions. Best, George IETF IPv6 working group mailing list ipv6@ietf.org Administrative Requests: https://www1.ietf.org/mailman/listinfo/ipv6

Re: draft-ietf-ipv6-deprecate-rh0-01-candidate-01

2007-06-13 Thread Bob Hinden
Joe, The next to last sentence is a bit weak. Dropping all packets with routing headers will flat-out break MIPv6. If routers/firewalls start doing that, that would be very bad. From a standards perspecive, we should clearly flag that as bad/non compliant. If I understand your point, you are

Re: draft-ietf-ipv6-deprecate-rh0-01-candidate-01

2007-06-13 Thread Jeroen Massar
Bob Hinden wrote: [..] I agree with Thomas that it is important to state this very clearly. How about something like this: Firewall policy intended to protect against packets containing RH0 must be constructed such that routing headers of other types are not filtered by default.

Re: draft-ietf-ipv6-deprecate-rh0-01-candidate-01

2007-06-13 Thread Thomas Narten
Bob Hinden [EMAIL PROTECTED] writes: I agree with Thomas that it is important to state this very clearly. To be clear, if even a small fraction of firewalls get deployed that just block all traffic with a RH, MIPv6 breaks and becomes undeployable in practice. For EVERYONE! MIPv6 can't work

Re: draft-ietf-ipv6-deprecate-rh0-01-candidate-01

2007-06-13 Thread Rémi Denis-Courmont
Le mercredi 13 juin 2007, Thomas Narten a écrit : To be clear, if even a small fraction of firewalls get deployed that just block all traffic with a RH, MIPv6 breaks and becomes undeployable in practice. For EVERYONE! The answer to the upcoming question must be obvious to many people here,

Re: draft-ietf-ipv6-deprecate-rh0-01-candidate-01

2007-06-13 Thread Bob Hinden
Thomas, Could be even stronger. How about: It must be understood that blocking all traffic with any RH (rather than restricting blockage only to type 0) has very serious implications for the deployment of future technology. Quite simply, if even a small percentage of

Re: Revising Centrally Assigned ULA draft

2007-06-13 Thread Paul Vixie
Templin, Fred L [EMAIL PROTECTED] wrote: so my previous question stands. what's a site? Paraphrasing from the 'draft-templin-autoconf-dhcp' definition for Mobile Ad-hoc Network (MANET): site a connected network region that comprises routers that maintain a routing

Re: draft-ietf-ipv6-deprecate-rh0-01-candidate-01

2007-06-13 Thread Joe Abley
On 13-Jun-2007, at 10:09, Jeroen Massar wrote: I have one teeny thing that I think would be worthwhile repeating in that document: Please enable uRPF where possible as that actually already takes care of the most of the problem as packets can't go where they are not able to come from. Is

Re: Revising Centrally Assigned ULA draft

2007-06-13 Thread Paul Vixie
A site (or site-of-sites to use the MANET terminology) is defined by the routability of a particular ULA prefix. - Bernie from a process point of view that would be circular, since we're hoping to use the meaning of site to help us define the proposed rules for ULA.

Re: draft-ietf-ipv6-deprecate-rh0-01-candidate-01

2007-06-13 Thread Jeroen Massar
Joe Abley wrote: On 13-Jun-2007, at 10:09, Jeroen Massar wrote: I have one teeny thing that I think would be worthwhile repeating in that document: Please enable uRPF where possible as that actually already takes care of the most of the problem as packets can't go where they are not able

Re: draft-ietf-ipv6-deprecate-rh0-01-candidate-01

2007-06-13 Thread Joe Abley
On 13-Jun-2007, at 10:42, Thomas Narten wrote: Firewall policy intended to protect against packets containing RH0 must be constructed such that routing headers of other types are not filtered by default. Doing so will break other uses of the routing headers such as the

Re: draft-ietf-ipv6-deprecate-rh0-01-candidate-01

2007-06-13 Thread Joe Abley
On 13-Jun-2007, at 14:33, Jeroen Massar wrote: Joe Abley wrote: On 13-Jun-2007, at 10:09, Jeroen Massar wrote: I have one teeny thing that I think would be worthwhile repeating in that document: Please enable uRPF where possible as that actually already takes care of the most of the

Re: Revising Centrally Assigned ULA draft

2007-06-13 Thread Paul Vixie
Someone pointed out that ([RFC4193], Section 4) provides operational guidelines, and I think the same guidelines would be true for ULA-Cs as they are for ULAs? when there's a draft for ula-c, we'll know. it's been described here as ula but with working in-addr.arpa lookups, and as long as the

Re: draft-ietf-ipv6-deprecate-rh0-01-candidate-01

2007-06-13 Thread Jeroen Massar
Joe Abley wrote: On 13-Jun-2007, at 14:33, Jeroen Massar wrote: Joe Abley wrote: On 13-Jun-2007, at 10:09, Jeroen Massar wrote: I have one teeny thing that I think would be worthwhile repeating in that document: Please enable uRPF where possible as that actually already takes care of

Re: draft-ietf-ipv6-deprecate-rh0-01-candidate-01

2007-06-13 Thread JINMEI Tatuya / 神明達哉
At Wed, 13 Jun 2007 04:53:50 -0700, Thomas Narten [EMAIL PROTECTED] wrote: Abstract The functionality provided by IPv6's Type 0 Routing Header can be exploited in order to achieve packet amplification for the purposes of generating denial-of-service traffic. This document