Cisco Cisco ISA570 Integrated Security Appliance Folheto
1
Application Note
Web URL/Content Filtering on the Cisco ISA500 Security
This application note provides information on how to configure the Cisco ISA500
Security Appliance so that you can filter URLs. For example, you can block
websites that Web URL Filtering usually allows, or allow the websites that Web
URL Filtering usually blocks.
Security Appliance so that you can filter URLs. For example, you can block
websites that Web URL Filtering usually allows, or allow the websites that Web
URL Filtering usually blocks.
NOTE
The Cisco ISA500 has two services to perform URL and Content filtering: Firewall
Content Filtering or a subscription-based Web URL Filtering (Security Services).
Only one of these services can be active at a time. This application note describes
how to perform URL and Content Filtering with Security Services.
Content Filtering or a subscription-based Web URL Filtering (Security Services).
Only one of these services can be active at a time. This application note describes
how to perform URL and Content Filtering with Security Services.
The first step to filter a URL is to configure a policy profile. After a policy profile has
been configured, you use the Policy to Zone Mapping page to apply the Web URL
Filtering policy profile to each zone.
been configured, you use the Policy to Zone Mapping page to apply the Web URL
Filtering policy profile to each zone.
Configuring a Policy Profile
The policy profile allows you to identify a web site that you want to block or allow.
NOTE
Up to 16 Web URL Filtering policy profiles can be configured on the security
appliance.
appliance.
STEP 1
Click Security Services > Web URL Filtering > Policy Profile. The Policy Profile
window opens.
window opens.
STEP 2
Click Add. The Policy Profile - Add/Edit window opens.
STEP 3
Enter a Policy Name and Description.
NOTE
If you want to block entire URL categories, for example, Social Networking, select
the categories that you want to block in the Categories Table. If you only want to
block categories, click OK and then click Save, and go to
the categories that you want to block in the Categories Table. If you only want to
block categories, click OK and then click Save, and go to
, otherwise continue with the next
step to block or allow specific URLs.
STEP 4
Click the Edit button.
STEP 5
Click Add. The Website Access Control Rule - Add/Edit window opens.
STEP 6
Enter a URL to block or allow.
Note: If you want to block a URL, ensure that you choose Deny; the Permit option is the default value.