chain input {
type filter hook input priority filter; policy drop;
- iifname "lo" accept comment "!fw4: Accept traffic from loopback"
+ iif "lo" accept comment "!fw4: Accept traffic from loopback"
ct state vmap { established : accept, related : accept } comment "!fw4: Handle inbound flows"
tcp flags & (fin | syn | rst | ack) == syn jump syn_flood comment "!fw4: Rate limit TCP syn packets"
chain output {
type filter hook output priority filter; policy accept;
- oifname "lo" accept comment "!fw4: Accept traffic towards loopback"
+ oif "lo" accept comment "!fw4: Accept traffic towards loopback"
ct state vmap { established : accept, related : accept } comment "!fw4: Handle outbound flows"
meta l4proto tcp counter comment "!fw4: Test-Deprecated-Rule-Option"