Re: Ipv6 help

[JORDI PALET MARTINEZ via NANOG <nanog () nanog org>]

    > So for 464XLAT I will need to install a PLAT capable device(s)...

    PLAT support has been around already with the traditional vendors. It's
    not new.

[Jordi] NAT64 (PLAT) is there available in excellent open source implementations. You can use VMs in big rackable 
servers and it gets even much cheaper. I know there is one open source implementation of NAT444. However, the number of 
NAT64 boxes that you need vs NAT444 is lower, and it will keep going lower as more and more services in Internet are 
IPv6 ready and those that suck more bw such as those video services, are already IPv6 and the increase in their traffic 
keeps going up.

    >  as well as replace all CPE with CLAT capable devices ($$$$). I will also need to deal with the infancy period as 
I will GUARANTEE that the CPE will break badly and will create additional cost ($$$$).
    >
    > For NAT444 I just need to install NAT444 router(s) . No additional cost for CPE or added troubleshooting as the 
existing CPE is fully baked. Agreed that customers will need help with IPv6, but that will be required either way. 
Also, the customer maintains a native IPv4 service (all be it NATed) until IPv4 does the dodo dance. In the end, the 
provider turns-off the NAT444 and disables IPv4 on their core, which has already been enabled for IPv6 when deploying 
dual-stack.

    Well, you need to run the numbers on time, support and acquisition of
    new revenue if you maintain NAT44, while the rest of the world (and your
    competitors) are going as native IPv6 as they can.

    You need to consider if it's worth taking the risk of being left behind,
    or not.

[Jordi] This is the key. Make your numbers, each network is a different world. Some questions:
1) How much cost the NAT64 vs CGN ?
2) How much traffic will move to IPv6 if you use a CPE with CLAT ?
3) How many IPv4 addresses you need using CGN vs NAT64 ? That may be a lot of money.
4) How much you will save in helpdesk support because CGN ? (Sony today, tomorrow some others)
5) How much you can ask your customers to contribute to the replacement of the CPE (which cost you below 20-25 USD 
including logistic to ship within your country) while offering them a dual radio and better WiFi, "faster IPv6 
experience", less issues with apps because the CGN, faster LAN ports, future proof "New Internet" connection, better 
security (in the WiFi and a better firewall in the CPE), etc., etc. Is not that I like to use marketing, but it is a 
fact that if you don't do, sooner or later your competitor will do, and customers like to "upgrade" things (and 
everybody loves better WiFi). How many new customers you can get from the competitor because that marketing?

All that means less investment in the operator side, which you can use to fund the acquisition or update of CPEs (in 
some projects we updated the Mikrotik rubish to OpenWRT!).

My take on this. If you really want to keep using dual-stack, fine, but don't use CGN, you don't need that. It is way 
cheaper to just go into the transfers market and get more IPv4 addresses. Problem solved (including 1-4 above).

    Either way, your customers will, at some point or other, show you what
    will work :-).

    For me, my time is very limited, particularly on this rock we call
    earth. I could spend it maintaining a CGN, but I'd rather spend it
    chasing down CPE vendors to get CLAT support, or bad-mouthing Sony to
    get with the program. If I have to lose a few customers in the process,
    so be it. If I run out of breath before I reach my goal, well, hopefully
    the work done along the way will help the next idiot that sees things
    the same way I do :-).

    Mark.




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