fail2ban iptables having port 22 and fails to block ssh on custom port

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http://serverfault.com – This question is almost same problem like mine but accepted answer doesn't solve my issues In Fail2Ban, How to Change the SSH port number? SSH on port 22 everything works great. After 5 attempts fail2ban reads from logs and bans my ip for 600 seconds. And here is fail2ban log 2013-07-10 11:54:08,522 fail2ban.actions: WARNING [ssh-iptables] Ban 2013-07-10 12:04:09,348 fail2ban.actions: WARNING [ssh-iptables] Unban My iptables, fail2ban has port 22 Chain INPUT (policy ACCEPT 1591 packets, 165K bytes) pkts bytes target prot opt in out source (HowTos)