IP ban issue

hey, so I had a user banned from before. he was a big problem so we decided to ipban him.
I had banned the IP as 999.999.999.% but he was just able to sign up and post as 999.999.999.000 should I not be using % as wildcards?
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hey, so I had a user banned from before. he was a big problem so we decided to ipban him.
I had banned the IP as 999.999.999.% but he was just able to sign up and post as 999.999.999.000 should I not be using % as wildcards?
Answers
Is * the wildcard?
% is the wildcard
Pretty sure the correct wildcard is *
http://vanillaforums.com/discussion/87/banning-users
different info here.