[PLUG] Linux, IPv6, and Comcast

Tim tim-pdxlug at sentinelchicken.org
Wed Jun 6 23:12:35 UTC 2012


Hi Russell,

> Tim> Howdy all, I recently have switched my home line to Comcast and I
> Tim> purchased a cable modem that supposedly supports ipv6.  In light
> Tim> of world ipv6 day, and the fact that comcast is enabling it for
> Tim> some customers, I decided to try real quick to get an address
> Tim> with dibbler and a few other tools, but haven't had any luck.
> 
> Tim> I don't even know if Comcast has enabled ipv6 in our area or if
> Tim> you need to opt-in or anything.  Has anyone else tried getting
> Tim> native dual-stack v6 working in Linux here in the Portland area?
> 
> Roughly 18 Personal Telco nodes have ipv6 connectivity now, the rest
> are coming soon.  We have a Hurricane Electric tunnel with a /48 that
> we are parsing up for nodes, each node gets a /64.  Works fine.  I
> routinely connect over ipv6. 
> 
> Hurrican Electric tunnels are super easy to set up.  Just realize that
> wasting gigantic swaths of ipv6 space is *NORMAL*.  It takes some
> getting used to.  Your tunnel uses 2 addresses out of a possible 2^64.
> You aren't expected to use any more of those.  Just ask for a /48 and
> use one of the /64's out of that for your LAN.
> 
> My understanding with Comcast is that they had a trial, but the trial
> is currently closed.  That may be out-of-date.


I read that they had a trial with 6RD and/or DS-lite and that is
closed.  My understanding is that they are rolling out native v6
slowly to all customers now.  Just about any of the news articles on
the world ipv6 day mentions they are doing this, and of course there
is http://comcast6.net/.

I've run tunnels before and all that.  I just wanted to know if anyone
had tried Comcast's service locally and had already done the research,
resulting in  "yes it's available and here's what I did" or "no, they
haven't enabled it here yet".  Calling Comcast support on anything
remotely technical isn't usually a great use of time, so just wanted
to ask here first.

tim



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