Re: Response to Dave Thaler regarding server-initiated DHCPv6

2009-11-10 Thread Suresh Krishnan
Hi Ralph, I was just commenting that the addressing policy changes triggered by routing changes are best initiated by the router and all the other policy changes are best initiated by the DHCP server. I was not commenting on the suitability/ease of use of the delivery mechanism(s) at all.

Re: Response to Dave Thaler regarding server-initiated DHCPv6

2009-11-10 Thread Christopher Morrow
On Tue, Nov 10, 2009 at 9:34 PM, Ralph Droms rdr...@cisco.com wrote: OK. I'll agree that the information about routing changes is available in the router.  Whether the router has all the information needed and the mechanisms to translate that routing information into policy changes for the

Re: Response to Dave Thaler regarding server-initiated DHCPv6

2009-11-10 Thread Ralph Droms
My point is that place with better information and best place from which to deliver information to the host are not necessarily (although likely to be) the same... - Ralph On Nov 11, 2009, at 12:09 PM 11/11/09, Christopher Morrow wrote: On Tue, Nov 10, 2009 at 9:34 PM, Ralph Droms

Re: Response to Dave Thaler regarding server-initiated DHCPv6

2009-11-10 Thread Ralph Droms
They don't actually need a full DHCPv6 server. Support of Information- request/Reply/Reconfigure would be sufficient. - Ralph On Nov 11, 2009, at 1:55 PM 11/11/09, Christopher Morrow wrote: On Tue, Nov 10, 2009 at 11:13 PM, Ralph Droms rdr...@cisco.com wrote: My point is that place with

Re: Response to Dave Thaler regarding server-initiated DHCPv6

2009-11-10 Thread Christopher Morrow
On Wed, Nov 11, 2009 at 12:04 AM, Ralph Droms rdr...@cisco.com wrote: They don't actually need a full DHCPv6 server.  Support of Information-request/Reply/Reconfigure would be sufficient. I think we're spliting hairs... but eventually someone's going to want to do all portions of dhcpv6 and NOT

Re: Response to Dave Thaler regarding server-initiated DHCPv6

2009-11-10 Thread Christopher Morrow
On Tue, Nov 10, 2009 at 11:13 PM, Ralph Droms rdr...@cisco.com wrote: My point is that place with better information and best place from which to deliver information to the host are not necessarily (although likely to be) the same... agreed. though 'at my house' and 'at my office' are 2

Response to Dave Thaler regarding server-initiated DHCPv6

2009-11-09 Thread Ralph Droms
In the discussion of IPv6 address selection , Dave Thaler asked me to comment on this bullet from slide 10: * DHCP option - Hard to kick policy reconfigure by a server. Not wanting to contribute to yet another iteration of the RA-vs-DHCP debate, I'm responding through the mailing list.

Re: Response to Dave Thaler regarding server-initiated DHCPv6

2009-11-09 Thread Arifumi Matsumoto
On 2009/11/10, at 10:58, Ralph Droms wrote: In the discussion of IPv6 address selection , Dave Thaler asked me to comment on this bullet from slide 10: * DHCP option - Hard to kick policy reconfigure by a server. Not wanting to contribute to yet another iteration of the RA-vs-DHCP

Re: Response to Dave Thaler regarding server-initiated DHCPv6

2009-11-09 Thread Ralph Droms
DHCPv6 Reconfigure can be secured using an additional Reconfigure Key that does not require a shared secret or other pre- configuration. So, the DHCPv6 Reconfigure has essentially no overhead. See section 21.5 of RFC 3315. - Ralph On Nov 10, 2009, at 11:06 AM 11/10/09, Arifumi Matsumoto