Created
December 20, 2012 11:08
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IPv6 Firewall rules for a MikroTik router to allow outgoing connections, but block incoming, unless they are responses...
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| /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=sit1 | |
| 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 |
Like this add action=accept chain=forward comment="Allow limited ICMP forwarding" disabled=no limit=50/5s,5 protocol=icmpv6
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You should allow forward ICMPv6 because this protocol is very important on fragmentation and discovery processes.