root@router:/usr/src/linux# iptables -L
Chain INPUT (policy ACCEPT)
target     prot opt source               destination
DROP       tcp  -- !21-173-231-201.fibertel.com.ar  anywhere            tcp dpt:ssh
DROP       tcp  --  anywhere             anywhere            tcp dpt:ntp
LOG        all  --  anywhere             anywhere            limit: avg 3/min burst 3 LOG level info prefix `IPT INPUT packet died: '