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table inet filter {
chain forward {
type filter hook forward priority filter
policy drop
iifname eno1 oifname dsl counter accept
iifname dsl oifname eno1 ct state {established, related} counter accept
meta l4proto ipv6-icmp counter accept
meta l4proto icmp counter accept
meta l4proto igmp counter accept
log prefix "drop forward: " counter
}
chain input {
type filter hook input priority filter
policy drop
iifname lo counter accept
iif != lo ip daddr 127.0.0.1/8 counter drop
iif != lo ip6 daddr ::1/128 counter drop
ct state {established, related} counter accept
tcp dport 22 counter accept
udp dport 51820 counter accept
udp dport 60000-61000 counter accept
meta l4proto ipv6-icmp counter accept
meta l4proto icmp counter accept
meta l4proto igmp counter accept
log prefix "drop input: " counter
}
chain output {
type filter hook output priority filter
policy accept
counter
}
}
table ip nat {
chain postrouting {
type nat hook postrouting priority srcnat
policy accept
oifname dsl counter masquerade
counter
}
}
table inet mangle {
chain postrouting {
type filter hook postrouting priority mangle
policy accept
oifname dsl meta l4proto tcp tcp flags & (syn|rst) == syn counter tcp option maxseg size set rt mtu
counter
}
}
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