nanog mailing list archives

RE: turning on comcast v6


From: Jamie Bowden <jamie () photon com>
Date: Fri, 20 Dec 2013 13:07:27 +0000

From: Lee Howard [mailto:Lee () asgard org]
On 12/20/13 7:36 AM, "Jamie Bowden" <jamie () photon com> wrote:
From: Owen DeLong [mailto:owen () delong com]


I'm almost afraid to ask about the phrase "add-default-route=yes" in the
dhcp-client configuration. That seems wrong on the face of it since you
should be getting your routing information from RA and not DHCP.

No, no, no, a thousand times no.  I'm sure RA is great for small SOHO
networks and for ISPs as a means to hand out resources, but in a
corporate environment, we hate you.  How many times do the IPv6 people
have to hear that until DHCPv6 reaches feature parity with DCHPv4, IPv6
is dead to enterprise networks?


"Parity" isn't enough information; what features are missing?  RA is part
of IPv6, but you don't have to use SLAAC.
I'd say it's the DHC people who need to hear it, not the IPv6 people, but
YMMV.

I have a question.  Why does DHCP hand out router, net mask, broadcast address, etc. in IPv4; why don't we all just use 
RIP and be done with it?

You don't have to like how enterprise networks are built, but you better acknowledge that they are their own animal 
that have their own needs and drivers, and telling them that the way their networks are built are wrong and they need 
to change their whole architecture, separation of service, security model, etc. to fit your idea of perfection isn't 
winning friends.  You are, however, influencing people.  Perhaps not in the manner you intended.

Jamie


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