fail2ban ignoreip DNS host example?

From looking at the Python script that uses the "ignoreip" value trying to do a wildcard match on a name like that will not work, it needs to be an IP/network or be a name that resolves to an IP.

If the 'googlebot.com' string is in the log perhaps using "ignoreregex" instead will do the job? Command and usage is listed here: http://www.fail2ban.org/wiki/index.php/Commands#JAIL_CONFIGURATION