'IPv6' Newbie with IPv6 address assigment

Posted by Cute Puppy on Server Fault See other posts from Server Fault or by Cute Puppy
Published on 2012-09-04T21:22:30Z Indexed on 2012/09/04 21:40 UTC
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networking

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iptables

I am new to IP v6 and I am looking to translate some existing private IPv4 addresses into v6 address assignment. Can someone please help me to answer/explain the questions below?

If I have an v4 address of:

10.10.0.0/22
10.10.1.0/22
10.10.2.0/22
10.10.3.0/22
10.10.8.0/20
10.20.1.0/24

What will the new v6 address to be?

I have been looking online @ http://www.subnetonline.com/pages/subnet-calculators/ipv4-to-ipv6-converter.php

or other sites,

Seems like they translated it directly to be:

fe80::a0a:0 /118
fe80::a0a:100 /118
fe80::a0a:200 /118
fe80::a0a:300 /118
fe80::a0a:800 /118
fe80::a14:100 /120

Can someone please explain to me how we get to /118 from either "/22 or /24" (1. and 5)

In addition,

I would like to create the new private address based on the Unique local address "fc00::/16"

How do I expand from there?

Any help is greatly appreciated it!!

Thanks,

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