Simply to reduce the attack, and then improve the defense: If you don't need traffic from some area that is attacking you, just put the whole area in IPTables. A list is available on VOIP-INFO.org.
Cull out what you want to allow. Then tune Fail2Ban at your leisure. Cary Fitch -- _____________________________________________________________________ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- New to Asterisk? Join us for a live introductory webinar every Thurs: http://www.asterisk.org/hello asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users