I'm not really an advocate for or against DHCP or RAs. I really just want to understand what feature is missing. From: Blake Dunlap <ikiris@gmail.com> Date: Monday, December 30, 2013 3:19 PM To: Ryan Harden <hardenrm@uchicago.edu> Cc: Lee Howard <Lee@asgard.org>, Jamie Bowden <jamie@photon.com>, "nanog@nanog.org" <nanog@nanog.org> Subject: Re: turning on comcast v6
The better question is are you using RIP or ICMP to set gateways in your network now?
I disagree that that's a better question. I'm not using RIP because my hosts don't support it (at least, not without additional configuration), and it would be a very unusual configuration, adding weight and complexity for no benefit. RAs are the opposite. Not even sure how you would use ICMP to set a default gateway. Maybe there's a field I'm unaware of.
If you don't use those now, why is RA a better solution in ipv6?
It's built into the fundamentals of IPv6, using the Neighbor Discovery Protocol. It's supported in every stack. It's the default mode of operation. To turn it off, you have to disable part, but not all, of NDP. (Do you also turn off RSs on all hosts?) There could be better solutions; I would like to understand how they are better. Again, in your network, you can do whatever you want. If you want something different standardized, then you need consensus here: https://www.ietf.org/mailman/listinfo/dhcwg Lee