4 ms·

> If you plan to migrate your customers to IPv6 then you are a lunatic. Well... Comcast made IPv6 on-by-default to all residential customers some time ago (II

> If you plan to migrate your customers to IPv6 then you are a lunatic. Well... Comcast made IPv6 on-by-default to all residential customers some time ago (IIRC) and available (not sure if on-by-default) to all business customers. [1] Verizon requires all LTE devices to support v6 [2] and achieved >70% penetration in 2016 [3] (I'm too lazy to find a more recent statistic.) T-Mobile launched v6only in 2014 [4] and hit >90% in 2018. [5] > Eventually, of course, the dam is going to break and IPv6 will become ubiquitous. ISPs will decide that buying blocks of IPv4 addresses costs more than providing new customers with IPv6 plus some kind of carrier-grade NAT for legacy IPv4 addresses. More website hosting companies will support IPv6 in response, and suddenly IPv4 will be so last-decade. In short, that happened. [1] https://business.comcast.com/help-and-support/internet/comcast-business-internet-learn-about-ipv6/ https://business.comcast.com/help-and-support/internet/comca... [2] https://www.apnic.net/wp-content/uploads/2017/01/vzw_apnic_13462152832-2.pdf https://www.apnic.net/wp-content/uploads/2017/01/vzw_apnic_1... [3] https://archive.today/20160719154102/http://www.worldipv6launch.org/measurements/ https://archive.today/20160719154102/http://www.worldipv6lau... [4] https://www.internetsociety.org/resources/deploy360/2014/case-study-t-mobile-us-goes-ipv6-only-using-464xlat/ https://www.internetsociety.org/resources/deploy360/2014/cas... [5] https://pc.nanog.org/static/published/meetings/NANOG73/1645/20180625_Lagerholm_T-Mobile_S_Journey_To_v1.pdf https://pc.nanog.org/static/published/meetings/NANOG73/1645/...

floren 6y ago
I still have not figured out how to get an IPv6 lease from Comcast at my home; anyone who can point to a recent guide on doing so would be greatly appreciated!
- basch 6y ago
  Do you have one of their rentals, or your own hardware? It should be automatic on the former.
  - floren 6y ago
    It's my own hardware, an Arris SB6121. Maybe that's the problem?
    - ac29 6y ago
      The comcast connection I have with my own cable modem uses DHCPv6 with a /56 prefix. Beyond that you'll have to search for instructions on how to set it up with whatever router you are using.
      - floren 6y ago
        Maybe I haven't tried since Comcast turned on v6 for everyone, but I just set up /etc/network/interfaces as specified in https://wiki.debian.org/IPv6PrefixDelegation https://wiki.debian.org/IPv6PrefixDelegation and it just worked this time!
WarOnPrivacy 6y ago
> ISPs will decide that buying blocks of IPv4 addresses costs more than providing new customers with IPv6 plus some kind of carrier-grade NAT for legacy IPv4 addresses. This implies an ISP can do math. Frontier acquired lots of IPv4 addresses w/ it's $10B purchase of Verizon assets(in 2015 & $7B in 2010 & 2B of AT&T). Frontier has no plans to ever deploy IPv6.
- bluGill 6y ago
  How long before someone (probably in Asia) decides that their IPv4 address is worth more than the few customers who get there on IPv4?
  - mgbmtl 6y ago
    At some point (but probably in more than a few years), IPv4 users will be the new IE6 of the Internet.
apple4ever 6y ago
My big issue with Comcast IPv6 is the IP range is constantly changing. Makes it hard to statically assign servers.

floren 6y ago

I still have not figured out how to get an IPv6 lease from Comcast at my home; anyone who can point to a recent guide on doing so would be greatly appreciated!

basch 6y ago
Do you have one of their rentals, or your own hardware? It should be automatic on the former.
- floren 6y ago
  It's my own hardware, an Arris SB6121. Maybe that's the problem?
  - ac29 6y ago
    The comcast connection I have with my own cable modem uses DHCPv6 with a /56 prefix. Beyond that you'll have to search for instructions on how to set it up with whatever router you are using.
    - floren 6y ago
      Maybe I haven't tried since Comcast turned on v6 for everyone, but I just set up /etc/network/interfaces as specified in https://wiki.debian.org/IPv6PrefixDelegation https://wiki.debian.org/IPv6PrefixDelegation and it just worked this time!

WarOnPrivacy 6y ago

> ISPs will decide that buying blocks of IPv4 addresses costs more than providing new customers with IPv6 plus some kind of carrier-grade NAT for legacy IPv4 addresses. This implies an ISP can do math. Frontier acquired lots of IPv4 addresses w/ it's $10B purchase of Verizon assets(in 2015 & $7B in 2010 & 2B of AT&T). Frontier has no plans to ever deploy IPv6.

bluGill 6y ago
How long before someone (probably in Asia) decides that their IPv4 address is worth more than the few customers who get there on IPv4?
- mgbmtl 6y ago
  At some point (but probably in more than a few years), IPv4 users will be the new IE6 of the Internet.

apple4ever 6y ago

My big issue with Comcast IPv6 is the IP range is constantly changing. Makes it hard to statically assign servers.