Make sure IPv6 is either compiled into the Kernel, or compile it as a module and
% modprobe ipv6
For debugging, you'll want to install traceroute6 and ping6; on Debian, apt-get install iputils-tracepath and iputils-ping.
If you want a statically assigned address, you'll probably want a freenet6 tunnel.
You can get a tunnel from 
http://www.freenet6.net or (in Australia, maybe in NewZealand too if there are no local ones there) http://broker.aarnet.net.au.
The tunnel broker recommended by Andy Linton during his talk on the APE-WIX IPv6 testbed was Hurricane Electric.
For Debian, do
% apt-get install freenet6
Start up a command prompt and type
ipv6 install
The following URL may be of some assistance: http://msdn.microsoft.com/downloads/sdks/platform/tpipv6/readme.asp
GENERIC supports it by default, but otherwise compile support into your kernel with the following options
options INET6 device gif #IPv6 and IPv4 tunneling device faith #for IPv6 and IPv4 translation device stf #6to4 IPv6 over IPv4 encapsulation
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Don't try and give your client machines IP addresses - use zebra or radvd on your gateway.
fec0:0:0:ffff::{1,2,3} are reserved to be aliased onto name servers. Thus client machines can set their dns servers to these addresses and just use DNS.
See http://www.ietf.org/internet-drafts/draft-ietf-ipv6-dns-discovery-07.txt This draft has expired.
A cheap way of installing IPv6 under linux is to grab http://www.linux.it/md/6to4 and put it in your /etc/init.d directory and set it to run on boot. You're done. (See 6to4 for a more involved explaination as to what this script does.)
CategoryIPv6, CategoryNetworking
2 pages link to IPv6Setup:
