Firewall TCP flag list

[dgall]

NOOBIE question can some one give a link or list of the TCP flag list and definitions in the firewall logs example TCP:PA TCP:FA TCP:S etc etc

[va176thunderbolt]

https://en.wikipedia.org/wiki/Transmission_Control_Protocol#Connection_establishment should be a good start. The Protocol Operation section would be a good place to focus.

for example,  TCP:PA would be be a "push ack" , TCP:FA would be a "FIN ACK", etc…

[moikerz]

The basic list is always shown at the bottom of the firewall logs.

[jimp]

It's also on the doc wiki: https://doc.pfsense.org/index.php/What_are_TCP_Flags