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Re: [69ATTENDEES] DHCP

"The alternative would be to have DHCPv6-lite servers *on the router*" is decidedly *not* a hypothetical suggestion. Cisco routers have DHCPv6-lite servers today. Therefore, the fundamental step in configuration is, in the abstract, "hand out this address to hosts for DNS service". Whether that configuration step alters the RA configuration or the DHCP configuration, and whether the address is distributed by ND or by DHCP is immaterial to the admin.
Restating what was said earlier in this thread: DHCPv6 is *not* just for assigning addresses and does *not* require a deployment model with a single DHCP server for the organization... 

- Ralph

On Sep 13, 2007, at Sep 13, 2007,3:17 AM, Gert Doering wrote:


Hi,
On Thu, Sep 13, 2007 at 03:59:06PM +0900, Jun-ichiro itojun Hagino wrote: 
We just don't want to run yet another service that could fail, needs
configuration, and possibly debugging if client machines are unhappy. 

Routers are there, so RAs are there anyway.  DHCP is an extra.


	just checking: so you are voting for adding DNS server address info
	into RAs?


This would solve one part of our remaining issues with IPv6 auto-
configuration, yes.  (The other part is "rouge RAs", which is not
that easy).


	i just do not want RA be a kitchen sink, so DHCPv6-lite is a good-
	enough compromise for me.  if you piggyback DNS server address info
into RAs, you do need to configure the info into every routers you got. 

Yep.

The alternative would be to have DHCPv6-lite servers *on the router*
(remember: extra machines need power, maintenance, and tend to break) - so 
we'd need to configure this data on the routers anyway.
This is targeting SoHo networks - no dedicated servers, just client PCs 
and a router.  In our environment, the router is normally manually
configured, so configuring more stuff on it would not be a problem.
In some scenarios, DHCP prefix delegation from a centralized management server -> SoHo router, and from there RA / DHCPv6-lite -> clients would 
also imaginable, but that's a different deployment scenario.

Gert Doering
        -- NetMaster
--
Total number of prefixes smaller than registry allocations:  122119

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