Mikrotik Ön Tanımlı Kurallar

/ip firewall address-list add address=192.168.88.0/24 disabled=no list=support

/ip firewall address-list
add address=0.0.0.0/8 comment=Self-Identification [RFC 3330] disabled=no list=bogons
add address=10.0.0.0/8 comment=Private[RFC 1918] - CLASS A # Check if you need this subnet before enable it disabled=yes list=bogons
add address=127.0.0.0/8 comment=Loopback [RFC 3330] disabled=no list=bogons
add address=169.254.0.0/16 comment=Link Local [RFC 3330] disabled=no list=bogons
add address=172.16.0.0/12 comment=Private[RFC 1918] - CLASS B # Check if you need this subnet before enable it disabled=yes list=bogons
add address=192.168.0.0/16 comment=Private[RFC 1918] - CLASS C # Check if you need this subnet before enable it disabled=yes list=bogons
add address=192.0.2.0/24 comment=Reserved - IANA - TestNet1 disabled=no list=bogons
add address=192.88.99.0/24 comment=6to4 Relay Anycast [RFC 3068] disabled=no list=bogons
add address=198.18.0.0/15 comment=NIDB Testing disabled=no list=bogons
add address=198.51.100.0/24 comment=Reserved - IANA - TestNet2 disabled=no list=bogons
add address=203.0.113.0/24 comment=Reserved - IANA - TestNet3 disabled=no list=bogons
add address=224.0.0.0/4 comment=MC, Class D, IANA # Check if you need this subnet before enable it disabled=yes list=bogons

/ip firewall filter
add action=add-src-to-address-list address-list=Syn_Flooder address-list-timeout=30m chain=input comment=Add Syn Flood IP to the list connection-limit=30,32 disabled=no protocol=tcp tcp-flags=syn
add action=drop chain=input comment=Drop to syn flood list disabled=no src-address-list=Syn_Flooder
add action=add-src-to-address-list address-list=Port_Scanner address-list-timeout=1w chain=input comment=Port Scanner Detect disabled=no protocol=tcp psd=21,3s,3,1
add action=drop chain=input comment=Drop to port scan list disabled=no src-address-list=Port_Scanner
add action=jump chain=input comment=Jump for icmp input flow disabled=no jump-target=ICMP protocol=icmp
add action=drop chain=input comment=Block all access to the winbox - except to support list # DO NOT ENABLE THIS RULE BEFORE ADD YOUR SUBNET IN THE SUPPORT ADDRESS LIST disabled=yes dst-port=8291 protocol=tcp src-address-list=!support
add action=jump chain=forward comment=Jump for icmp forward flow disabled=no jump-target=ICMP protocol=icmp
add action=drop chain=forward comment=Drop to bogon list disabled=no dst-address-list=bogons
add action=add-src-to-address-list address-list=spammers address-list-timeout=3h chain=forward comment=Add Spammers to the list for 3 hours connection-limit=30,32 disabled=no dst-port=25,587 limit=30/1m,0 protocol=tcp
add action=drop chain=forward comment=Avoid spammers action disabled=no dst-port=25,587 protocol=tcp src-address-list=spammers
add action=accept chain=input comment=Accept DNS - UDP disabled=no port=53 protocol=udp
add action=accept chain=input comment=Accept DNS - TCP disabled=no port=53 protocol=tcp
add action=accept chain=input comment=Accept to established connections connection-state=established disabled=no
add action=accept chain=input comment=Accept to related connections connection-state=related disabled=no
add action=accept chain=input comment=Full access to SUPPORT address list disabled=no src-address-list=support
add action=drop chain=input comment=Drop anything else! # DO NOT ENABLE THIS RULE BEFORE YOU MAKE SURE ABOUT ALL ACCEPT RULES YOU NEED disabled=yes
add action=accept chain=ICMP comment=Echo request - Avoiding Ping Flood, adjust the limit as needed disabled=no icmp-options=8:0 limit=2,5 protocol=icmp
add action=accept chain=ICMP comment=Echo reply disabled=no icmp-options=0:0 protocol=icmp
add action=accept chain=ICMP comment=Time Exceeded disabled=no icmp-options=11:0 protocol=icmp
add action=accept chain=ICMP comment=Destination unreachable disabled=no icmp-options=3:0-1 protocol=icmp
add action=accept chain=ICMP comment=PMTUD disabled=no icmp-options=3:4 protocol=icmp
add action=drop chain=ICMP comment=Drop to the other ICMPs disabled=no protocol=icmp
add action=jump chain=output comment=Jump for icmp output disabled=no jump-target=ICMP protocol=icmp