 |
Note: For readability, the firewall filter policy is often referred to as firewall filter in this guide. |
To control the way routing information and data packets are handled, a Services Router uses the JUNOS policy framework. This framework consists of routing and firewall filter policies. Although these policies share fundamental similarities, they are different in their functionality and application. The routing policies control how route information is imported to and exported from the routing tables. Firewall filters examine data packets at the entry (ingress) and exit (egress) points of the Services Router, filtering router traffic.
|
Note: For readability, the firewall filter policy is often referred to as firewall filter in this guide. |
To manage the flow of information into and out of a Services Router, you must understand the fundamentals of routing and firewall filter policies. This chapter provides a brief overview of the policy fundamentals, under the following topics. For more information about routing policies and stateless firewall filters, see the JUNOS Policy Framework Configuration Guide. For more information about stateful firewall filters and Network Address Translation (NAT), see the JUNOS Services Interfaces Configuration Guide.
If the router is operating in a Common Criteria environment, see the Secure Configuration Guide for Common Criteria and JUNOS-FIPS.