Refer to the following sections for information about these topics:
• 11-1: Checking Firewall Vital Signs—Discusses methods you can use to diagnose a firewall’s health. System resources, logging output, throughput, failover, interface operation, and packet queuing are all covered.
• 11-2: Watching Data Pass Through a Firewall—Covers ways that packets can be logged or captured as they pass through a firewall or through its interfaces.
• 11-3: Verifying Firewall Connectivity—Provides a set of basic approaches to verify working communication through a firewall.
In the course of configuring and using a firewall, it is important to follow the appropriate security policies and offer the proper connectivity to ...