Friday, March 16, 2012
The firewall acts as a sort of defined in the what is stated in the security policy of the organization.conditional gateway. The criteria to permit traffic are normallyfirewall policy and, ideally, should relate to (and help on materializing)
Figure depicts a simple scenario in which there is a firewall controlling access from
clients on the trusted domain to servers on the untrusted domain:
· The enforced conditions corresponding to the question “Does my access controlpolicy allow...?” depend on the specific category of the firewall in place.
· Each domain of trust can include one or more networks.
· A firewall is only capable of controlling traffic that passes through it. This implies that clear knowledge about the location of clients and servers in the network is needed before beginning policy definition.
