On Mar 11, 2009, at 9:53 AM, sthaug at nethelp.no wrote:
I strongly disagree with your disagreement.
This is a major hot-button issue. People have extremely strong opinions about it. It happens that although you and Iljitsch disagree on what to do, you both have valid points. At the same time, you appear to be talking past each other.
What appears to be worrying Iljitsch, which you do not appear to be concerned about, is that if a DHCPv6 client is receptive to this option, it will trust it even when it is wrong, not just on your network but on his. So adoption of this option affects Iljitsch just as much as it affects you - he can't "opt out."
Similarly, your requirement, which Iljitsch does not agree with, is that on some networks, managing what gets sent in RAs is a lot more work than managing what gets sent by the DHCP server. DHCP provides you with a central control point, whereas RAs are necessarily configured in the router.
As I say, I don't know if you can reach any kind of rapprochement, but I think this is the heart of your disagreement, and I think that this conflict is well understood by the working group. It would be nice if there were some way for Iljitsch to opt out that still allowed you to get what you want, but I'm not sure that there is, which is what makes this a contentious discussion.