IPv6 and forensic requests

[Max Tulyev <maxtul () netassist ua>]

Hi All,

we are implementing IPv6 only infrastructure.

For IPv4 access, we using tayga for 6to4 translation and then CGN for NAT.

There is a number of ways for Linux based NAT to store information for 
future forensic requests (i.e. "who was it cracking that website?").

But what about 6to4 translators, as tayga? I believe there should be 
well-known patches or solutions. The aim is to have what /64 (not even 
/128) was translated to what IPv4 at the requested time.

Is there any?