See http://www.bieringer.de/linux/IPv6/IPv6-HOWTO/IPv6-HOWTO.html for information about installing and using IPv6 on Linux Systems
If you are using an Linux system with libc5 see ftp://ftp.bieringer.de/pub/linux/OldDocuments/
A general description can be found on SUN's IP Next Generation (IPng) document
IPv6 (Internet Protokoll version 6) is the successor of today's IPv4. It is described in the RFC's.
Since Kernel 2.1.x (x = latest) IPv6 - Support is included. Enable it by setting CONFIG_IPV6=[y|m]. However you'll need a few basic applications to make use of it. See http://www.bieringer.de/linux/IPv6/IPv6-HOWTO/IPv6-HOWTO-1.html for a list of the latest software and where to find it.
And since you're already downloading...: You should use the latest kernel, if possible.
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