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table inet filter {
chain forward {
type filter hook forward priority filter
policy drop
iifname eno1 accept
ct state {established, related} accept
meta l4proto ipv6-icmp accept
meta l4proto icmp accept
meta l4proto igmp accept
log prefix "drop forward:"
counter
}
chain input {
type filter hook input priority filter
policy drop
iifname lo accept
iif != lo ip daddr 127.0.0.1/8 counter drop
iif != lo ip6 daddr ::1/128 counter drop
ct state {established, related} accept
tcp dport 22 accept
udp dport 51820 accept
udp dport 60000-61000 accept
meta l4proto ipv6-icmp accept
meta l4proto icmp accept
meta l4proto igmp 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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