Re: Nftables ct count over 2 counter continues to trigger with only 1 connection
Florian Westphal <[email protected]> Fri, 24 Oct 2025 13:45:07 +0200
| Newsgroups | gmane.comp.security.firewalls.netfilter.general |
|---|---|
| Message-ID | <[email protected]> |
[email protected] <[email protected]> wrote: > I have read the documentation and asked on Stack Exchange but am unable to find an answer to the following behavior. > > Given this table and chain where 123.123.123.123 is my own address: > > table ip mytable { > chain mychain { > type filter hook input priority filter; policy accept; > ip saddr != 123.123.123.123 drop > ip saddr 123.123.123.123 ct count over 2 counter > } > } After looking at Fernandos analysis, does this work when you restrict this to new packets, i.e.: ct state new jump { ip saddr != 123.123.123.123 drop ip saddr 123.123.123.123 ct count over 2 counter } This is supposed to only ever add new connections and not re-add established ones.