On Thu, 27 Mar 2008 20:08:50 +0100, Pascal Hambourg wrote:
> Hello,
>
> Neil Cherry a écrit :
>>
>> - How do I get IPV6 addresses for my home? I doubt I'll get any as it
>> looks like I have to wait until the ISPs catch up. I have a Go6
>> tunnel but it gives me a /128 (I may need to do a lot more reading
>> as some imply that I might be able to get to my other device from
>> the V6 network).
>
> For local IPv6 connectivity only, you can use "Unique Local IPv6 Unicast
> Addresses" as described in RFC 4193. For global IPv6 connectivity, you
> can use 6to4 addresses with automatic tunnelling, or another
> point-to-point tunnel broker which gives at least a full /64, such as SixXS.

I have g06.com as my tunnel service. A few days after posting this I
reread the tunnel instructions and found I could set my end up as a
router. I'll do that later after I buld some proper iptables. I also
found the RFC and a script to help generate the addresses. Thanks.

>> - What IP address should my IPV6 apps bind to?
>
> The one you decide according to your needs. I cannot be more precise
> without further details.

I was afraid of that. I'll need more experience to figure out what to
use and what not to.

>> I've got djbdns working with IPV6 but one of its apps binds
>> it self to an address like: ::ffff:127.0.0.1:53 (IPV4 Mapped
>> addressing) but this is not one of the IPV6 addresses that I have on
>> my interface.
>
> IPv4-mapped IPv6 addresses are used for IPv4 communications on an IPv6
> socket, i.e. the socket is IPv6 but the actual packets are IPv4.
>::ffff:127.0.0.1 represents the IPv4 loopback address 127.0.0.1. If an
> application binds only to such an address, it will allow only IPv4
> communications.

Thanks I hadn't figured that one out yet.

--
Linux Home Automation Neil Cherry ncherry@linuxha.com
http://www.linuxha.com/ Main site
http://linuxha.blogspot.com/ My HA Blog
Author of: Linux Smart Homes For Dummies