Re: Tiny fragments issues

2007-05-17 Thread Jun-ichiro itojun Hagino 2.0
my take on this is that, for non-final fragment, the packet size must not be smaller than 1280 bytes. there's no valid use for smaller fragments (unless you have special network with MTU 1280). I agree to the solution. If we get more people talking about the need for this, we can

Re: I-D ACTION:draft-ietf-ipv6-deprecate-rh0-00.txt

2007-05-17 Thread Brian E Carpenter
On 2007-05-17 03:29, Joe Abley wrote: On 16-May-2007, at 18:54, Dow Street wrote: It may not be the mechanism itself that is the inherent problem, but rather the operational use model. In this case, disabling by default and filtering when RH0 is turned on allows for careful investigation

Re: I-D ACTION:draft-ietf-ipv6-deprecate-rh0-00.txt

2007-05-17 Thread Pekka Savola
On Wed, 16 May 2007, Vlad Yasevich wrote: As part of the deprecation effort, does it also make sense to update RFC 3542 (Advanced API) to remove the references to Type 0 routing header? Dunno about that, but I guess an Updates: 4294 (IPv6 Node Requirements) would be in order. -- Pekka

Re: I-D ACTION:draft-ietf-ipv6-deprecate-rh0-00.txt

2007-05-17 Thread Vlad Yasevich
Brian Haberman wrote: While it would be useful to update 3542, I don't think it is necessary. It is out-of-date given that it says the Type 0 routing header is the only one defined (it isn't). However, I don't see the benefit of revising that spec *just* for this. Perhaps we should simply

Re: Tiny fragments issues

2007-05-17 Thread Suresh Krishnan
Hi, Jun-ichiro itojun Hagino 2.0 wrote: my take on this is that, for non-final fragment, the packet size must not be smaller than 1280 bytes. there's no valid use for smaller fragments (unless you have special network with MTU 1280). I tend to disagree. I do think

Re: I-D ACTION:draft-ietf-ipv6-deprecate-rh0-00.txt

2007-05-17 Thread Joe Abley
On 16-May-2007, at 22:11, Iljitsch van Beijnum wrote: On 17-mei-2007, at 3:29, Joe Abley wrote: There is an argument that the right approach to facilitate source routing experiments is to deprecate RH0, and define a new type of routing header which is, from the outset, disabled by

Re: I-D ACTION:draft-ietf-ipv6-deprecate-rh0-00.txt

2007-05-17 Thread Tim Enos
On Wed, May 16, 2007 at 03:54:48PM -0700, Dow Street wrote: I think the new draft is too extreme in its mitigation approach, and would favor the disable by default option instead. I think the new draft is too soft in it's mitigation approach, and would favour language that more strongly

Re: I-D ACTION:draft-ietf-ipv6-deprecate-rh0-00.txt

2007-05-17 Thread Vlad Yasevich
Jun-ichiro itojun Hagino 2.0 wrote: As part of the deprecation effort, does it also make sense to update RFC 3542 (Advanced API) to remove the references to Type 0 routing header? we may want to remove references to rthdr0, but section 7 (Routing Header) may be useful for rthdr7

Re: Fwd: I-D ACTION:draft-ietf-ipv6-deprecate-rh0-00.txt

2007-05-17 Thread Tim Enos
Hi Ryan, Good point about including the whole sentence; mea culpa! :^\ On Wed, May 16, 2007 at 05:09:34PM -0500, Tim Enos wrote: In section 4.2, IMO it would seem good to see a brief justification of the statement: filtering based on the presence of any Routing Headers on IPv6 routers,

Re: I-D ACTION:draft-ietf-ipv6-deprecate-rh0-00.txt

2007-05-17 Thread Rémi Denis-Courmont
Le jeudi 17 mai 2007, Vlad Yasevich a écrit : As part of the deprecation effort, does it also make sense to update RFC 3542 (Advanced API) to remove the references to Type 0 routing header? And then: 1/ Are inet6_rth_space() and inet6_rth_init() supposed to fail with type 0? 2/ What is

Re: I-D ACTION:draft-ietf-ipv6-deprecate-rh0-00.txt

2007-05-17 Thread Jun-ichiro itojun Hagino 2.0
On Wed, May 16, 2007 at 03:54:48PM -0700, Dow Street wrote: I think the new draft is too extreme in its mitigation approach, and would favor the disable by default option instead. I think the new draft is too soft in it's mitigation approach, and would favour language that more strongly

I-D ACTION:draft-ietf-ipv6-over-ppp-v2-03.txt

2007-05-17 Thread Internet-Drafts
A New Internet-Draft is available from the on-line Internet-Drafts directories. This draft is a work item of the IP Version 6 Working Group Working Group of the IETF. Title : IP Version 6 over PPP Author(s) : S. Varada, et al. Filename:

Re: I-D ACTION:draft-ietf-ipv6-deprecate-rh0-00.txt

2007-05-17 Thread Brian Haberman
Dow, Dow Street wrote: I think the new draft is too extreme in its mitigation approach, and would favor the disable by default option instead. Underlying this debate seems to be the question of whether *any* form of source routing is ok / worthwhile. I'm curious how much of the RH0 FUD is

problems with draft-ietf-ipv6-deprecate-rh0-00.txt

2007-05-17 Thread Iljitsch van Beijnum
After reading draft-ietf-ipv6-deprecate-rh0-00.txt, I found several problems: - the draft mentions serious security implications that can be exploited without explaining what those are - the draft deprecates the routing header type 0 without explaining what deprecation entails - the