Mikrotik terkenal dengan firewallnya...untuk keamanan Mikrotik anda dari serangan luar maka inilah yang dibawah bentengnya...copykan perintah di bawah lalu pastekan di new terminal di winbox mikrotik anda....
/ip firewall filter add chain=input connection-state=invalid action=drop comment=”Drop_invalid_connections”
/ip firewall filter add chain=input protocol=udp action=accept comment=”UDP”
/ip firewall filter add chain=input protocol=icmp limit=50/5s,2 action=accept comment=”Allow_limited_pings”
/ip firewall filter add chain=input protocol=icmp action=drop comment=”Drop_excess_pings”
/ip firewall filter add chain=input protocol=tcp dst-port=21 src-address-list=ournetwork action=accept comment=”FTP”
/ip firewall filter add chain=input protocol=tcp dst-port=22 src-address-list=ournetwork action=accept comment=”SSH_for_secure_shell”
/ip firewall filter add chain=input protocol=tcp dst-port=23 src-address-list=ournetwork action=accept comment=”Telnet”
/ip firewall filter add chain=input protocol=tcp dst-port=80 src-address-list=ournetwork action=accept comment=”Web”
/ip firewall filter add chain=input protocol=tcp dst-port=8291 src-address-list=ournetwork action=accept comment=”winbox”
/ip firewall filter add chain=input protocol=tcp dst-port=1723 action=accept comment=”pptp-server”
/ip firewall filter add chain=input action=log log-prefix="DROP INPUT" comment=”Log_everything_else”
/ip firewall filter add chain=input protocol=tcp dst-port=23 src-address-list=ournetwork action=accept comment=”Telnet”
/ip firewall filter add chain=input protocol=tcp dst-port=80 src-address-list=ournetwork action=accept comment=”Web1”
/ip firewall mangle add chain=prerouting protocol=icmp action=mark-connection new-connection-mark=icmp-con passthrough=yes comment=” bikin_cepat_ping_dan_dns”
/ip firewall filter add chain=input protocol=tcp dst-port=1723 action=accept comment=”pptp-server”
/ip firewall filter add chain=input action=log log-prefix="DROP INPUT" comment=”Log¬everythingelse”
/ip firewall filter add chain=input protocol=tcp dst-port=8291 src-address-list=ournetwork action=accept comment=”winbox1”
/ip firewall filter add chain=input connection-state=invalid action=drop comment=”Drop_invalid_connections”
/ip firewall filter add chain=input protocol=udp action=accept comment=”UDP”
/ip firewall filter add chain=input protocol=icmp limit=50/5s,2 action=accept comment=”Allow_limited_pings”
/ip firewall filter add chain=input protocol=icmp action=drop comment=”Drop_excess_pings”
/ip firewall filter add chain=input protocol=tcp dst-port=21 src-address-list=ournetwork action=accept comment=”FTP”
/ip firewall filter add chain=input protocol=tcp dst-port=22 src-address-list=ournetwork action=accept comment=”SSH_for_secure_shell”
/ip firewall filter add chain=input protocol=tcp dst-port=23 src-address-list=ournetwork action=accept comment=”Telnet”
/ip firewall filter add chain=input protocol=tcp dst-port=80 src-address-list=ournetwork action=accept comment=”Web”
/ip firewall filter add chain=input protocol=tcp dst-port=8291 src-address-list=ournetwork action=accept comment=”winbox”
/ip firewall filter add chain=input protocol=tcp dst-port=1723 action=accept comment=”pptp-server”
/ip firewall filter add chain=input action=log log-prefix="DROP INPUT" comment=”Log_everything_else”
/ip firewall filter add chain=input protocol=tcp dst-port=23 src-address-list=ournetwork action=accept comment=”Telnet”
/ip firewall filter add chain=input protocol=tcp dst-port=80 src-address-list=ournetwork action=accept comment=”Web1”
/ip firewall mangle add chain=prerouting protocol=icmp action=mark-connection new-connection-mark=icmp-con passthrough=yes comment=” bikin_cepat_ping_dan_dns”
/ip firewall filter add chain=input protocol=tcp dst-port=1723 action=accept comment=”pptp-server”
/ip firewall filter add chain=input action=log log-prefix="DROP INPUT" comment=”Log¬everythingelse”
/ip firewall filter add chain=input protocol=tcp dst-port=8291 src-address-list=ournetwork action=accept comment=”winbox1”
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