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#!/usr/sbin/nft -f
flush ruleset
table inet filter {
chain input {
type filter hook input priority 0;
# accept any localhost traffic
iif lo accept
# accept traffic originated from us
ct state established,related accept
# activate the following line to accept common local services
#tcp dport { 22, 80, 443 } ct state new accept
# ICMPv6 packets which must not be dropped, see https://tools.ietf.org/html/rfc4890#section-4.4.1
meta nfproto ipv6 icmpv6 type { destination-unreachable, packet-too-big, time-exceeded, parameter-problem, echo-reply, echo-request, nd-router-solicit, nd-router-advert, nd-neighbor-solicit, nd-neighbor-advert, 148, 149 } accept
ip6 saddr fe80::/10 icmpv6 type { 130, 131, 132, 143, 151, 152, 153 } accept
# count and drop any other traffic
counter drop
}
}