Cisco Cisco Firepower Management Center 2000 문제 해결 가이드
Contents
Introduction
URL Filtering Lookup Process
Cloud Connectivity Issues
Step 1: Check the Licenses
Is the License Installed?
Is the License Expired?
Step 2: Check Health Alerts
Step 3: Check DNS Settings
Step 4: Check Connectivity to the Required Ports
Access Control and Miscategorization Issues
Problem 1: URL with Unselected Reputation Level is Allowed / Blocked
Rule Action is Allow
Rule Action is Block
URL Selection Matrix
Problem 2: Wildcard Does not Work in the Access Control Rule
Problem 3: URL Category and Reputation are not Populated
Related Information
Introduction
This document describes common issues with URL filtering. The URL filtering feature on
FireSIGHT Management Center categorizes traffic of monitored hosts and allows you to write a
condition in an access control rule based on reputation.
FireSIGHT Management Center categorizes traffic of monitored hosts and allows you to write a
condition in an access control rule based on reputation.
URL Filtering Lookup Process
In order to accelerate the URL lookup process, the URL filtering provides a dataset that is installed
on a Firepower System locally. Dependent upon the amount of memory (RAM) available on an
appliance, there are two types of datasets:
on a Firepower System locally. Dependent upon the amount of memory (RAM) available on an
appliance, there are two types of datasets:
Type of Dataset
Memory Requirement
On Version 5.3
On
Version
5.4 or
higher
20 Million URL Dataset >2GB
>3.4 GB
1 Million URL Dataset <= 2GB
<= 3.4 GB