how to use established command in pix

[sebastan_bach]

hi could anyone pls tell me how to use the established command in pix. i tried reading the documentation but really understand when to use it. can someone pls explain.

thanks in advance.

regards

sebastan

[Patrick Iseli]

Established is not really used in the PIX because the PIX is a Stateful Firewall.

This means that if a packet is allowed for example from the Internet to the DMZ Web Server then the returning traffic is allowed. You do not need to configure the returning traffic in the Access-List.

A stateful firewall keeps a session table of all connection.

The established command in ACL is used on routers which does not have a stateful connection table.

See also:

http://en.wikipedia.org/wiki/Stateful_firewall

sincerely

Patrick

[sebastan_bach]

hi patrick thanks.

regards

sebastan