I’m pretty sure Comcast, along with most other MSOs in NA, use squat space for
various endpoints because they have run out of public and private IPv4 space.
Everyone obviously wants to get to all IPv6 but there are millions of end
devices and other gear they speak to which do not support it. For the most
part I think they try to re-use space and use the transition space when they
can, but some deployed squat space before that came about or it’s simply not
enough.
Phil
On 12/18/17, 3:36 PM, "NANOG on behalf of Mark Andrews"
<nanog-boun...@nanog.org on behalf of ma...@isc.org> wrote:
Companies like COMCAST did. They manage the modems over IPv6.
They also supported DS-Lite’s development as a transition mechanism so they
wouldn’t have to run IPv4 to their customers. They wanted to be able to go
IPv6 only. That meant having IPv4 as a service available.
--
Mark Andrews
> On 19 Dec 2017, at 06:34, Harald Koch <c...@pobox.com> wrote:
>
>> On 17 December 2017 at 17:48, Tom Carter <m1enr...@gmail.com> wrote:
>>
>> RFC1918 isn't big enough to cover all use cases. Think about a large
>> internet service providers. If you have ten million customers, 10.0.0.0/8
>> would be enough to number modems, but what happens when you need to
number
>> video set top boxes and voice end points? I don't think anyone goes out
and
>> says "Lets go use someone else's space, because I don't want to use this
>> perfectly good private space".
>>
>
> :cough:
>
> They could use IPv6. I mean, if the mobile phone companies can figure it
> out, surely an ISP can...
>
> --
> Harald
