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01-28006-0100-20041105
Fortinet Inc.
Policy
Firewall
Policy
Go to
Firewall > Policy
to add firewall policies to control connections and traffic
between FortiGate interfaces, zones, and VLAN subinterfaces.
The firewall matches policies by searching for a match starting at the top of the policy
list and moving down until it finds the first match. You must arrange policies in the
policy list from more specific to more general. For example, the default policy is a very
general policy because it matches all connection attempts. When you create
exceptions to that policy, you must add them to the policy list above the default policy.
No policy below the default policy will ever be matched.
This section describes:
•
How policy matching works
•
Policy list
•
Policy options
•
Advanced policy options
•
Configuring firewall policies
How policy matching works
When the FortiGate unit receives a connection attempt at an interface, it selects a
policy list to search through for a policy that matches the connection attempt. The
FortiGate unit chooses the policy list based on the source and destination addresses
of the connection attempt.
The FortiGate unit then starts at the top of the selected policy list and searches down
the list for the first policy that matches the connection attempt source and destination
addresses, service port, and time and date at which the connection attempt was
received. The first policy that matches is applied to the connection attempt. If no policy
matches, the connection is dropped.
Policy list
You can add, delete, edit, re-order, enable, and disable policies in the policy list.
Figure 79: Sample policy list
Note:
Policies that require authentication must be added to the policy list above matching
policies that do not; otherwise, the policy that does not require authentication is selected first.
Summary of Contents for FortiGate FortiGate-500A
Page 24: ...24 01 28006 0100 20041105 Fortinet Inc Customer service and technical support Introduction...
Page 46: ...46 01 28006 0100 20041105 Fortinet Inc Changing the FortiGate firmware System status...
Page 72: ...72 01 28006 0100 20041105 Fortinet Inc FortiGate IPv6 support System network...
Page 80: ...80 01 28006 0100 20041105 Fortinet Inc Dynamic IP System DHCP...
Page 110: ...110 01 28006 0100 20041105 Fortinet Inc FortiManager System config...
Page 116: ...116 01 28006 0100 20041105 Fortinet Inc Access profiles System administration...
Page 134: ...134 01 28006 0100 20041105 Fortinet Inc Shutdown System maintenance...
Page 248: ...248 01 28006 0100 20041105 Fortinet Inc CLI configuration Users and authentication...
Page 324: ...324 01 28006 0100 20041105 Fortinet Inc CLI configuration Antivirus...
Page 386: ...386 01 28006 0100 20041105 Fortinet Inc Glossary...
Page 394: ...394 01 28006 0100 20041105 Fortinet Inc Index...