Code: Select all
/ip firewall filter
add action=fasttrack-connection chain=forward comment="defconf: fasttrack" \
connection-state=established,related
add action=fasttrack-connection chain=forward comment="Fasstrack DNS TCP" \
dst-port=53 protocol=tcp
add action=fasttrack-connection chain=forward comment="Fasttrack DNS UPD" \
dst-port=53 protocol=udp
add action=accept chain=input comment=\
"defconf: accept established,related,untracked" connection-state=\
established,related,untracked
add action=drop chain=input comment="defconf: drop invalid" connection-state=\
invalid
add action=accept chain=input comment="defconf: accept ICMP" protocol=icmp
add action=drop chain=input comment="defconf: drop all not coming from LAN" \
in-interface-list=!LAN
add action=accept chain=forward comment="defconf: accept in ipsec policy" \
ipsec-policy=in,ipsec
add action=accept chain=forward comment="defconf: accept out ipsec policy" \
ipsec-policy=out,ipsec
add action=accept chain=forward comment=\
"defconf: accept established,related, untracked" connection-state=\
established,related,untracked
add action=drop chain=forward comment="defconf: drop invalid" \
connection-state=invalid
add action=drop chain=forward comment=\
"defconf: drop all from WAN not DSTNATed" connection-nat-state=!dstnat \
connection-state=new in-interface-list=WAN
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 protocol=tcp \
tcp-flags=syn
add action=drop chain=input comment="Drop to syn flood list" \
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" \
protocol=tcp psd=21,3s,3,1
add action=drop chain=input comment="Drop to port scan list" \
src-address-list=Port_Scanner
add action=jump chain=input comment="Jump for icmp input flow" jump-target=\
ICMP protocol=icmp
add action=drop chain=input comment="Block all access to the winbox - except t\
o support list # DO NOT ENABLE THIS RULE BEFORE ADD YOUR SUBNET IN THE SUP\
PORT ADDRESS LIST" dst-port=8291 protocol=tcp src-address-list=!support
add action=jump chain=forward comment="Jump for icmp forward flow" \
jump-target=ICMP protocol=icmp
add action=drop chain=forward comment="Drop to bogon list" 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 dst-port=\
25,587 limit=30/1m,0:packet protocol=tcp
add action=drop chain=forward comment="Avoid spammers action" dst-port=25,587 \
protocol=tcp src-address-list=spammers
add action=accept chain=input comment="Accept DNS - UDP" port=53 protocol=udp
add action=accept chain=input comment="Accept DNS - TCP" port=53 protocol=tcp
add action=accept chain=input comment="Accept to established connections" \
connection-state=established
add action=accept chain=input comment="Accept to related connections" \
connection-state=related
add action=accept chain=input comment="Full access to SUPPORT address list" \
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"
add action=accept chain=ICMP comment="Echo request - Avoiding Ping Flood" \
icmp-options=8:0 limit=1,5:packet protocol=icmp
add action=accept chain=ICMP comment="Echo reply" icmp-options=0:0 protocol=\
icmp
add action=accept chain=ICMP comment="Time Exceeded" icmp-options=11:0 \
protocol=icmp
add action=accept chain=ICMP comment="Destination unreachable" icmp-options=\
3:0-1 protocol=icmp
add action=accept chain=ICMP comment=PMTUD icmp-options=3:4 protocol=icmp
add action=drop chain=ICMP comment="Drop to the other ICMPs" protocol=icmp
add action=jump chain=output comment="Jump for icmp output" jump-target=ICMP \
protocol=icmp
