For each incoming events, Prelude-Manager will run a number of normalization routine: sanitize address, services information, etc.
When the normalizer see an incoming IPv4 mapped IPv6 address, the default behavior is to map it back to raw IPv4. For example, ::ffff:192.168.0.1 will be mapped back to 192.168.0.1
If you do not want IPv4 mapped IPv6 addresses, un-comment the following option in your Prelude-Manager configuration file:
Alternatively, if you wish for any input IPv4 addresses to be converted to IPv6, uncomment the following option: