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firewall-rules-default
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/ip firewall filter
add chain=input action=accept connection-state=established,related,untracked comment="defconf: accept established,related,untracked"
add chain=input action=drop connection-state=invalid comment="defconf: drop invalid"
add chain=input action=accept protocol=icmp comment="defconf: accept ICMP"
add chain=input action=accept dst-address=127.0.0.1 comment="defconf: accept to local loopback (for CAPsMAN)"
add chain=input action=drop in-interface-list=!LAN comment="defconf: drop all not coming from LAN"
add chain=forward action=accept ipsec-policy=in,ipsec comment="defconf: accept in ipsec policy"
add chain=forward action=accept ipsec-policy=out,ipsec comment="defconf: accept out ipsec policy"
add chain=forward action=fasttrack-connection connection-state=established,related comment="defconf: fasttrack"
add chain=forward action=accept connection-state=established,related,untracked comment="defconf: accept established,related, untracked"
add chain=forward action=drop connection-state=invalid comment="defconf: drop invalid"
add chain=forward action=drop connection-state=new connection-nat-state=!dstnat in-interface-list=WAN comment="defconf: drop all from WAN not DSTNATed"
/ipv6 firewall address-list
add list=bad_ipv6 address=::/128 comment="defconf: unspecified address"
add list=bad_ipv6 address=::1 comment="defconf: lo"
add list=bad_ipv6 address=fec0::/10 comment="defconf: site-local"
add list=bad_ipv6 address=::ffff:0:0/96 comment="defconf: ipv4-mapped"
add list=bad_ipv6 address=::/96 comment="defconf: ipv4 compat"
add list=bad_ipv6 address=100::/64 comment="defconf: discard only "
add list=bad_ipv6 address=2001:db8::/32 comment="defconf: documentation"
add list=bad_ipv6 address=2001:10::/28 comment="defconf: ORCHID"
add list=bad_ipv6 address=3ffe::/16 comment="defconf: 6bone"
/ipv6 firewall
add chain=input action=accept connection-state=established,related,untracked comment="defconf: accept established,related,untracked"
add chain=input action=drop connection-state=invalid comment="defconf: drop invalid"
add chain=input action=accept protocol=icmpv6 comment="defconf: accept ICMPv6"
add chain=input action=accept protocol=udp port=33434-33534 comment="defconf: accept UDP traceroute"
add chain=input action=accept protocol=udp dst-port=546 src-address=fe80::/10 comment="defconf: accept DHCPv6-Client prefix delegation."
add chain=input action=accept protocol=udp dst-port=500,4500 comment="defconf: accept IKE"
add chain=input action=accept protocol=ipsec-ah comment="defconf: accept ipsec AH"
add chain=input action=accept protocol=ipsec-esp comment="defconf: accept ipsec ESP"
add chain=input action=accept ipsec-policy=in,ipsec comment="defconf: accept all that matches ipsec policy"
add chain=input action=drop in-interface-list=!LAN comment="defconf: drop everything else not coming from LAN"
add chain=forward action=accept connection-state=established,related,untracked comment="defconf: accept established,related,untracked"
add chain=forward action=drop connection-state=invalid comment="defconf: drop invalid"
add chain=forward action=drop src-address-list=bad_ipv6 comment="defconf: drop packets with bad src ipv6"
add chain=forward action=drop dst-address-list=bad_ipv6 comment="defconf: drop packets with bad dst ipv6"
add chain=forward action=drop protocol=icmpv6 hop-limit=equal:1 comment="defconf: rfc4890 drop hop-limit=1"
add chain=forward action=accept protocol=icmpv6 comment="defconf: accept ICMPv6"
add chain=forward action=accept protocol=139 comment="defconf: accept HIP"
add chain=forward action=accept protocol=udp dst-port=500,4500 comment="defconf: accept IKE"
add chain=forward action=accept protocol=ipsec-ah comment="defconf: accept ipsec AH"
add chain=forward action=accept protocol=ipsec-esp comment="defconf: accept ipsec ESP"
add chain=forward action=accept ipsec-policy=in,ipsec comment="defconf: accept all that matches ipsec policy"
add chain=forward action=drop in-interface-list=!LAN comment="defconf: drop everything else not coming from LAN"