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config: Drop unaccounted icmp6 packets #44

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config: Drop unaccounted icmp6 packets #44

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1073536
Drop unaccounted icmp6 packets
brada4 Feb 1, 2025
2cabdfa
Fix both highlightrd issues
brada4 Mar 24, 2025
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21 changes: 19 additions & 2 deletions root/etc/config/firewall
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Original file line number Diff line number Diff line change
Expand Up @@ -81,7 +81,7 @@ config rule
option src wan
option proto icmp
list icmp_type echo-request
list icmp_type echo-reply
# list icmp_type echo-reply
list icmp_type destination-unreachable
list icmp_type packet-too-big
list icmp_type time-exceeded
Expand All @@ -91,27 +91,44 @@ config rule
list icmp_type neighbour-solicitation
list icmp_type router-advertisement
list icmp_type neighbour-advertisement
# list icmo_type fragmentation-needed
option limit 1000/sec
option family ipv6
option target ACCEPT

config rule
option name Drop-ICMPv6-Excess
option src wan
option proto icmp
option family ipv6
option target DROP

# Allow essential forwarded IPv6 ICMP traffic
config rule
option name Allow-ICMPv6-Forward
option src wan
option dest *
option proto icmp
list icmp_type echo-request
list icmp_type echo-reply
# list icmp_type echo-reply
list icmp_type destination-unreachable
list icmp_type packet-too-big
list icmp_type time-exceeded
list icmp_type bad-header
list icmp_type unknown-header-type
# list icmo_type fragmentation-needed
option limit 1000/sec
option family ipv6
option target ACCEPT

config rule
option name Drop-ICMPv6-Forward-Excess
option sec wan
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option dest *
option proto icmp
option family ipv6
option target DROP

config rule
option name Allow-IPSec-ESP
option src wan
Expand Down