Cisco Systems ISA550 Manual De Usuario

Configuring Web URL Filtering

Cisco ISA500 Series Integrated Security Appliances Administration Guide

327

 

In the Service Outage area, you can specify how to deal with web traffic when 
Web Reputation Filtering is unavailable. Choose one of the following actions: 

•

Block Web Traffic when web reputation filter services are not available: 
All web traffic is blocked until Web Reputation Filtering is available. The 
default block page will be displayed when a web page is blocked. The 
message that you specify in the Blocked Web Filter Message field will 
show on the default block page. 

•

Allow Web Traffic even when web reputation filter services are not 
available: All web traffic is allowed until Web Reputation Filtering is 
available. 

Click Save to apply your settings. 

Web URL Filtering allows you to block HTTP access to malicious websites based 
on URL categories. You can allow or block an entire URL category to make 
configuration simpler. You can also specify the website exceptions against the 
URL category settings. For example, you can block the websites that Web URL 
Filtering usually allows, or allow the websites that Web URL Filtering usually 
blocks. 

You can enable Web URL Filtering Alert to send email alerts to a specific email 
address when web URL categories have any changes. See 

Web URL Filtering only monitors and controls the website visits through the HTTP 
port specified on the Web URL Filtering > Advanced Settings page. 

Refer to the following topics:

•

•

•

•