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3� 3� u� 0� �� Z �� � ipt_ip smsk dmsk iniface outiface iniface_mask outiface_mask ipt_entry nfcache comefrom ipt_reject_with IPT_ICMP_NET_UNREACHABLE IPT_ICMP_HOST_UNREACHABLE IPT_ICMP_PROT_UNREACHABLE IPT_ICMP_PORT_UNREACHABLE IPT_ICMP_ECHOREPLY IPT_ICMP_NET_PROHIBITED IPT_ICMP_HOST_PROHIBITED IPT_TCP_RESET IPT_ICMP_ADMIN_PROHIBITED ipt_reject_info with reject_tg reject_tg_check reject_tg_exit reject_tg_init