Recommended value for tcp.established timer
torino last edited by
hi everyone !
just some questions regarding firewall timers :
what is the recommended value for tcp.established ?
and what is the default-value in pfsense ?
which tcp-flag(s) triggers the cleanup of the state ESTABLISHED:ESTABLISHED ?
FIN ? RST ? or both ?
many thanks for your support !
The default is the recommended value:
: pfctl -st tcp.first 120s tcp.opening 30s tcp.established 86400s tcp.closing 900s tcp.finwait 45s tcp.closed 90s tcp.tsdiff 30s udp.first 60s udp.single 30s udp.multiple 60s icmp.first 20s icmp.error 10s other.first 60s other.single 30s other.multiple 60s frag 30s interval 10s adaptive.start 27600 states adaptive.end 55200 states src.track 60s
You can change some of those timers by adjusting the firewall optimization mode under System > Advanced on the Firewall/NAT tab.
IIRC both FIN and RST will tear down the connection, but that would be something you'd find in pf's documentation in OpenBSD.