[118290] in North American Network Operators' Group

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RE: IPv6 Deployment for the LAN

daemon@ATHENA.MIT.EDU (TJ)
Sun Oct 18 13:29:01 2009

From: "TJ" <trejrco@gmail.com>
To: "'NANOG'" <nanog@nanog.org>
In-Reply-To: <4ADB3812.6050805@kl.net>
Date: Sun, 18 Oct 2009 13:29:54 -0400
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org

> In some cases different devices on a segment need a different
> default router (for default).  This is the fundamental

This capability is also defined, "more specific routes" - but no one
encouraged any vendors that I know of to support it - so they don't.  Big
demand?


> problem with RA's, they shotgun the entire segment.

As opposed to a standard deployment, where the DHCP server provides the same
information to every host on that link ... ???


> What would be useful would be having the option to give a default
> router to a dhcpv6 client, and having vrrpv6 work without RA's.

These are separate problems.
Host configuration vs. first-hop redundancy, and we can solve them
independently.


> Why can't we have those options in our toolbox in addition to
> this continuously evolving RA+hacks?

You say hacks, others see it as relatively-speaking simple additions of more
functionality.
You can define any options you want for DHCPv6, write a draft and get
community support.
I don't see how that ("continuously evolving DHCPv6 hacks") is any better
than what is happening with RAs?



I, for one, am just fine with RAs being the first step - leading to either
SLAAC or (some mode of) DHCPv6 ... 
/TJ



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