[Mediawiki-l] mapping usernames to IP addresses

[Reid Priedhorsky]

Dear mediawikis,

We run a MediaWiki.

For each of our users, we would like to get a list of IP addresses that 
the user has used while logged in (or logged in from).

Is this possible? If so, how?

(I'm sure this has been answered already, but my Google-fu is failing 
me, so my apologies if this is a duplicate.)

Thanks,

Reid