[167592] in North American Network Operators' Group
Re: turning on comcast v6
daemon@ATHENA.MIT.EDU (Owen DeLong)
Fri Dec 20 00:32:39 2013
From: Owen DeLong <owen@delong.com>
In-Reply-To: <52B3C382.7080208@kenweb.org>
Date: Thu, 19 Dec 2013 21:30:35 -0800
To: ml@kenweb.org
Cc: North American Network Operators' Group <nanog@nanog.org>
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
>=20
> FYI - DHCP-PD is now working better in RouterOS 6.5
>=20
> Prefix length hints are now available (CLI) only.
>=20
> /ipv6 dhcp-client add add-default-route=3Dyes interface=3D<wan =
interface>
> pool-name=3Ddhcp-pd \
> prefix-hint=3D::/60
>=20
I'd like to encourage people to use prefix-hint=3D::/48.
The router should accept the /60 and deal with it, but it's better to =
have Comcast's logs show that you requested a proper full-size prefix.
I'm almost afraid to ask about the phrase "add-default-route=3Dyes" 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.
> In the case of Comcast (and anecdotally ISC DHCP) - You'll either need
> to wait out the the lease time (4 days) or ask Comcast to nicely clear
> out your /64 lease manually. Release/renew doesn't release your =
current
> DHCP lease. I was getting A /64 and /60 (/64 had a preference of 255)
> before Comcast removed the /64 lease manually.
Is it somehow harmful to have both?
Owen
