Slashdot: UK ISP PlusNet Testing Carrier-Grade NAT Instead of IPv6

fredrik danerklint fredan-nanog at fredan.se
Wed Jan 16 19:53:08 UTC 2013


>> Even tough you have very good arguments, my suggestion would be to have a
>> class A network (I got that right, right?) for all the users and only having
>> 6rd as service on that network.
>
> ARIN and IETF cooperated last year to allocate 100.64.0.0/10 for CGN
> use. See RFC 6598. This makes it possible to implement a CGN while
> conflicting with neither the user's RFC1918 activity nor the general
> Internet's use of assigned addresses. Hijacking a /8 somewhere instead
> is probably not a great move.

Ok.

If I have calculated the netmasks right that would mean to set aside:

2001:0DB8:6440::/42

for the use of 6rd service:

2001:0DB8:6440:0000::/64 = 100.64.0.0
....
2001:0DB8:647F:FFFF::/64 = 100.127.255.255

-- 
//fredan

http://tlmc.fredan.se



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