rpress
December 26, 2009, 10:34pm
1
Would anyone like to share their IPv6 firewall rules or comment on mine?
Here is mine:
/ipv6 firewall filter
add action=accept chain=input comment="Allow established connections" connection-state=established disabled=no
add action=accept chain=input comment="Allow related connections" connection-state=related disabled=no
add action=accept chain=input comment="Allow limited ICMP" disabled=no limit=50/5s,5 protocol=icmpv6
add action=accept chain=input comment="Allow UDP" disabled=no protocol=udp
add action=drop chain=input comment="" disabled=no
add action=accept chain=forward comment="Allow any to internet" disabled=no out-interface=sixbone
add action=accept chain=forward comment="Allow established connections" connection-state=established disabled=no
add action=accept chain=forward comment="Allow related connections" connection-state=related disabled=no
add action=drop chain=forward comment="" disabled=no
Kola
December 8, 2013, 1:21pm
2
I hope i’m not too late.
/ipv6 firewall filter
#limited ICMP input
add chain=input limit=100,5 protocol=icmpv6
add action=drop chain=input protocol=icmpv6
#limited ICMP forwarding
add chain=forward limit=100,5 protocol=icmpv6
add action=drop chain=forward protocol=icmpv6
#as usual established and related input connections is OK, others from wan is denied
add chain=input connection-state=established
add chain=input connection-state=related
#< this is a place to add winbox or ssh acceptance
add action=drop chain=input in-interface=StF
#just as above established and related forwarding connections is OK, others from wan is denied
add chain=forward connection-state=established
add chain=forward connection-state=related
#< this is a place to add forwarding acceptance for local servers
add action=drop chain=forward in-interface=StF
The fourth drop rule maybe should be only like that:
add action=drop chain=forward connection-state=invalid in-interface=StF
because there’s no UPnP (no destination NAT mechanism) in IPv6. Or is it (in RoS)?
And after that should it be there line like this:
add action=drop chain=forward in-interface=StF out-interface=StF
or it is useless. I got to read more about ipv6 routing.
I use ether1 for outside and ether2,3,4,5 for differences LAN.
Default IPv6 firewall from 6.45.6
/ipv6 firewall address-list
add address=::/128 comment="defconf: unspecified address" list=bad_ipv6
add address=::1/128 comment="defconf: lo" list=bad_ipv6
add address=fec0::/10 comment="defconf: site-local" list=bad_ipv6
add address=::ffff:0.0.0.0/96 comment="defconf: ipv4-mapped" list=bad_ipv6
add address=::/96 comment="defconf: ipv4 compat" list=bad_ipv6
add address=100::/64 comment="defconf: discard only " list=bad_ipv6
add address=2001:db8::/32 comment="defconf: documentation" list=bad_ipv6
add address=2001:10::/28 comment="defconf: ORCHID" list=bad_ipv6
add address=3ffe::/16 comment="defconf: 6bone" list=bad_ipv6
add address=::224.0.0.0/100 comment="defconf: other" list=bad_ipv6
add address=::127.0.0.0/104 comment="defconf: other" list=bad_ipv6
add address=::/104 comment="defconf: other" list=bad_ipv6
add address=::255.0.0.0/104 comment="defconf: other" list=bad_ipv6
/ipv6 firewall filter
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 ICMPv6" protocol=icmpv6
add action=accept chain=input comment="defconf: accept UDP traceroute" port=33434-33534 protocol=udp
add action=accept chain=input comment="defconf: accept DHCPv6-Client prefix delegation." dst-port=546 protocol=udp src-address=fe80::/10
add action=accept chain=input comment="defconf: accept IKE" dst-port=500,4500 protocol=udp
add action=accept chain=input comment="defconf: accept ipsec AH" protocol=ipsec-ah
add action=accept chain=input comment="defconf: accept ipsec ESP" protocol=ipsec-esp
add action=accept chain=input comment="defconf: accept all that matches ipsec policy" ipsec-policy=in,ipsec
add action=drop chain=input comment="defconf: drop everything else not coming from LAN" in-interface-list=!LAN
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 packets with bad src ipv6" src-address-list=bad_ipv6
add action=drop chain=forward comment="defconf: drop packets with bad dst ipv6" dst-address-list=bad_ipv6
add action=drop chain=forward comment="defconf: rfc4890 drop hop-limit=1" hop-limit=equal:1 protocol=icmpv6
add action=accept chain=forward comment="defconf: accept ICMPv6" protocol=icmpv6
add action=accept chain=forward comment="defconf: accept HIP" protocol=139
add action=accept chain=forward comment="defconf: accept IKE" dst-port=500,4500 protocol=udp
add action=accept chain=forward comment="defconf: accept ipsec AH" protocol=ipsec-ah
add action=accept chain=forward comment="defconf: accept ipsec ESP" protocol=ipsec-esp
add action=accept chain=forward comment="defconf: accept all that matches ipsec policy" ipsec-policy=in,ipsec
add action=drop chain=forward comment="defconf: drop everything else not coming from LAN" in-interface-list=!LAN
These are mine.