IPv6?

[Tom Buskey]

Back in 2009, Comcast was redirecting DNS.  When Comcast went all IPv6
(internally at least) they could no longer do this.  They are one of the
major users.

I imagine there will be mixed v4 and v6 for awhile.  IPv4 is well known and
debugged.  The security issues have been explored and mitigated or worked
around where needed.

IPv6 is still not known as well from a security point of view and there
it's sometimes better to deal with the devil you know then to go to the
unknown.  IPv6 is still too long in coming.

On Tue, Jan 13, 2015 at 6:14 PM, Jason T. Nelson <jtn at jtn.cx> wrote:

> In our last exciting episode, Joshua Judson Rosen (rozzin at hackerposse.com)
> said:
> > Hm. That prompts a few follow-up questions:
> >
> >       - Does "native Comcast IPv6" mean that Comcast is actually putting
> >         their residential customers on IPv6 addresses now?
> >
> >         (I haven't been a Comcast residential customer in years, so I
> >         don't know)
> >
> >         Is that something that you need to (or can) request, or do they
> >         just
> >         do it as a matter of course?
>
> They appear to have pretty good coverage now, they started on the west
> coast sometime in 2011. I think I received a native (by this I mean
> non-tunneled, not translated) IPv6 address earlier last year in Manchester.
> Assuming you have a supported cable modem and your hardware connected to
> it supports it, you will be provided an IPv6 address via DHCPv6; there's no
> opt-in or even opt-out. In addition, you can ask for additional prefixes
> beyond the default /128 address given if your DHCPv6 client supports Prefix
> Delegation. I'll leave that configuration as an exercise to the reader as
> it depends on OS and client implementation :)
>
> >       - How are you going about determining your IPv4/IPv6 traffic split?
>
> My edge device/router is a small FreeBSD box where I'm using the netflow
> Netgraph node to export netflow data for analysis. I did it originally as
> a testbed for $dayjob.
>
> --
> Jason T. Nelson <jtn at jtn.cx>
> GPG key 0xFF676C9E
>
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>
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