Stateful firewall in pfsense

[ltrgiang]

Hi all
I wonder, how to check stateful firewall feature in pfSense. I read in ebook pfsense: The Definitive Guide that pfSense is stateful firewall, but I don't know to check this feature. what tool to check this feature. can you help me?

Thanks all

[GruensFroeschli]

A stateful firewall isn't a "feature to test".
It's more a description of what pf is.

May i suggest you read up on this first:
http://en.wikipedia.org/wiki/Stateful_firewall
http://www.pearsonhighered.com/samplechapter/0672327376.pdf

After that, this might help you:
http://security.stackexchange.com/questions/8124/how-do-experienced-users-test-stateful-firewall

Altough if you're not already familiar with what a stateful firewall is it will take you a long time to get into a position to actually "test" a stateful firewall ;)

[denis31]

@ltrgiang:

Hi all
I wonder, how to check stateful firewall feature in pfSense. I read in ebook pfsense: The Definitive Guide that pfSense is stateful firewall, but I don't know to check this feature. what tool to check this feature. can you help me?

Thanks all

Hi,

Well, On PfSense 1.2.3, you have the 'Show states' menu on front page 'System Overview' to get a firewall states list :
tcp 94.245.117.45:80 <- 130.120.209.126:53964 ESTABLISHED:ESTABLISHED
tcp 130.120.209.126:53964 -> 94.245.117.45:80 ESTABLISHED:ESTABLISHED
…

Regards,