SEKEDAR BERBAGI

Konfigurasi dibawah ini dapat memblokir beberapa Trojan, Virus, Backdoor
yang telah dikenali sebelumnya baik Nomor Port yang dipakai serta Protokolnya.
Juga telah di konfigurasikan untuk menahan Flooding dari Jaringan Publik dan
jaringan Lokal. Serta pemberian rule untuk Access control agar, Rentang
jaringan tertentu saja yang bisa melakukan Remote atau mengakses service
tertentu terhadap Mesin Mikrotik kita.


/ ip firewall filter
add chain=input connection-state=invalid action=drop comment="Drop Invalid
connections" disabled=no
add chain=input src-address=!192.168.0.0/27 protocol=tcp src-port=1024-65535
dst-port=8080 action=drop comment="Block to Proxy" disabled=no
add chain=input protocol=udp dst-port=12667 action=drop comment="Trinoo" disabled=no
add chain=input protocol=udp dst-port=27665 action=drop comment="Trinoo" disabled=no
add chain=input protocol=udp dst-port=31335 action=drop comment="Trinoo" disabled=no
add chain=input protocol=udp dst-port=27444 action=drop comment="Trinoo" disabled=no
add chain=input protocol=udp dst-port=34555 action=drop comment="Trinoo" disabled=no
add chain=input protocol=udp dst-port=35555 action=drop comment="Trinoo" disabled=no
add chain=input protocol=tcp dst-port=27444 action=drop comment="Trinoo" disabled=no
add chain=input protocol=tcp dst-port=27665 action=drop comment="Trinoo" disabled=no
add chain=input protocol=tcp dst-port=31335 action=drop comment="Trinoo" disabled=no
add chain=input protocol=tcp dst-port=31846 action=drop comment="Trinoo" disabled=no
add chain=input protocol=tcp dst-port=34555 action=drop comment="Trinoo" disabled=no
add chain=input protocol=tcp dst-port=35555 action=drop comment="Trinoo" disabled=no
add chain=input connection-state=established action=accept comment="Allow
Established connections" disabled=no
add chain=input protocol=udp action=accept comment="Allow UDP" disabled=no
add chain=input protocol=icmp action=accept comment="Allow ICMP" disabled=no
add chain=input src-address=192.168.0.0/27 action=accept comment="Allow access
to router from known network" disabled=no
add chain=input action=drop comment="Drop anything else" disabled=no
add chain=forward protocol=tcp connection-state=invalid action=drop
comment="drop invalid connections" disabled=no
add chain=forward connection-state=established action=accept comment="allow
already established connections" disabled=no
add chain=forward connection-state=related action=accept comment="allow
related connections" disabled=no
add chain=forward src-address=0.0.0.0/8 action=drop comment="" disabled=no
add chain=forward dst-address=0.0.0.0/8 action=drop comment="" disabled=no
add chain=forward src-address=127.0.0.0/8 action=drop comment="" disabled=no
add chain=forward dst-address=127.0.0.0/8 action=drop comment="" disabled=no
add chain=forward src-address=224.0.0.0/3 action=drop comment="" disabled=no
add chain=forward dst-address=224.0.0.0/3 action=drop comment="" disabled=no
add chain=forward protocol=tcp action=jump jump-target=tcp comment="" disabled=no
add chain=forward protocol=udp action=jump jump-target=udp comment="" disabled=no
add chain=forward protocol=icmp action=jump jump-target=icmp comment="" disabled=no
add chain=tcp protocol=tcp dst-port=69 action=drop comment="deny TFTP" disabled=no
add chain=tcp protocol=tcp dst-port=111 action=drop comment="deny RPC
portmapper" disabled=no
add chain=tcp protocol=tcp dst-port=135 action=drop comment="deny RPC
portmapper" disabled=no
add chain=tcp protocol=tcp dst-port=137-139 action=drop comment="deny NBT" disabled=no
add chain=tcp protocol=tcp dst-port=445 action=drop comment="deny cifs" disabled=no
add chain=tcp protocol=tcp dst-port=2049 action=drop comment="deny NFS" disabled=no
add chain=tcp protocol=tcp dst-port=12345-12346 action=drop comment="deny
NetBus" disabled=no
add chain=tcp protocol=tcp dst-port=20034 action=drop comment="deny NetBus" disabled=no
add chain=tcp protocol=tcp dst-port=3133 action=drop comment="deny
BackOriffice" disabled=no
add chain=tcp protocol=tcp dst-port=67-68 action=drop comment="deny DHCP" disabled=no
add chain=udp protocol=udp dst-port=69 action=drop comment="deny TFTP" disabled=no
add chain=udp protocol=udp dst-port=111 action=drop comment="deny PRC
portmapper" disabled=no
add chain=udp protocol=udp dst-port=135 action=drop comment="deny PRC
portmapper" disabled=no
add chain=udp protocol=udp dst-port=137-139 action=drop comment="deny NBT" disabled=no
add chain=udp protocol=udp dst-port=2049 action=drop comment="deny NFS" disabled=no
add chain=udp protocol=udp dst-port=3133 action=drop comment="deny
BackOriffice" disabled=no
add chain=input protocol=tcp psd=21,3s,3,1 action=add-src-to-address-list
address-list="port scanners" address-list-timeout=2w comment="Port
scanners to list " disabled=no
add chain=input protocol=tcp tcp-flags=fin,!syn,!rst,!psh,!ack,!urg
action=add-src-to-address-list address-list="port scanners"
address-list-timeout=2w comment="NMAP FIN Stealth scan" disabled=no
add chain=input protocol=tcp tcp-flags=fin,syn action=add-src-to-address-list
address-list="port scanners" address-list-timeout=2w comment="SYN/FIN
scan" disabled=no
add chain=input protocol=tcp tcp-flags=syn,rst action=add-src-to-address-list
address-list="port scanners" address-list-timeout=2w comment="SYN/RST
scan" disabled=no
add chain=input protocol=tcp tcp-flags=fin,psh,urg,!syn,!rst,!ack
action=add-src-to-address-list address-list="port scanners"
address-list-timeout=2w comment="FIN/PSH/URG scan" disabled=no
add chain=input protocol=tcp tcp-flags=fin,syn,rst,psh,ack,urg
action=add-src-to-address-list address-list="port scanners"
address-list-timeout=2w comment="ALL/ALL scan" disabled=no
add chain=input protocol=tcp tcp-flags=!fin,!syn,!rst,!psh,!ack,!urg
action=add-src-to-address-list address-list="port scanners"
address-list-timeout=2w comment="NMAP NULL scan" disabled=no
add chain=input src-address-list="port scanners" action=drop comment="dropping
port scanners" disabled=no
add chain=icmp protocol=icmp icmp-options=0:0 action=accept comment="drop
invalid connections" disabled=no
add chain=icmp protocol=icmp icmp-options=3:0 action=accept comment="allow
established connections" disabled=no
add chain=icmp protocol=icmp icmp-options=3:1 action=accept comment="allow
already established connections" disabled=no
add chain=icmp protocol=icmp icmp-options=4:0 action=accept comment="allow
source quench" disabled=no
add chain=icmp protocol=icmp icmp-options=8:0 action=accept comment="allow
echo request" disabled=no
add chain=icmp protocol=icmp icmp-options=11:0 action=accept comment="allow
time exceed" disabled=no
add chain=icmp protocol=icmp icmp-options=12:0 action=accept comment="allow
parameter bad" disabled=no
add chain=icmp action=drop comment="deny all other types" disabled=no
add chain=tcp protocol=tcp dst-port=25 action=reject
reject-with=icmp-network-unreachable comment="Smtp" disabled=no
add chain=tcp protocol=udp dst-port=25 action=reject
reject-with=icmp-network-unreachable comment="Smtp" disabled=no
add chain=tcp protocol=tcp dst-port=110 action=reject 
reject-with=icmp-network-unreachable comment="Smtp" disabled=no
add chain=tcp protocol=udp dst-port=110 action=reject
reject-with=icmp-network-unreachable comment="Smtp" disabled=no
add chain=tcp protocol=udp dst-port=110 action=reject
reject-with=icmp-network-unreachable comment="Smtp" disabled=no