[radvd-devel-l] Wildcard Interface Addresses
pekkas at netcore.fi
Tue Feb 12 05:37:41 EST 2008
On Tue, 12 Feb 2008, Norman Rasmussen wrote:
>> This has two problems. First, as Vista uses privacy addresses
>> (randomly generated v6 addresses from the advertised prefixes), those
>> don't work as you haven't set up host routes to them. Second, two
>> clients get the same /64 so they can't talk if you don't do bridging
>> between different interfaces.
> The random address is the same for the link-local/site-local/global
> addresses. So I can happily strip the link-local prefix, and append the
> global prefix in the ipv6-up script.
No, it's different. With "privacy address", I'm referring to RFC 3041
(and its successor). Vista generates new global addresses
periodically, I think by default once a day. I don't think you can
track those this way.
>> I'm not sure if configuring addresses with DHCPv6 (address assignment
>> part, not prefix delegation) would help in your case, even if very few
>> OSs support it out of the box. I doubt it.
> Vista will only use DHCPv6 to request a /64 if the VPN tunnel is being
> shared, which I don't need to do.
That's the "DHCPv6 prefix delegation" mode. There is additionally
"DHCPv6 address assignment" solution (where you can give hosts /128
addresses) but I'm not sure if Vista supports it and in general that's
not a generally available solution.
Pekka Savola "You each name yourselves king, yet the
Netcore Oy kingdom bleeds."
Systems. Networks. Security. -- George R.R. Martin: A Clash of Kings
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