Cisco Systems ISA550 Manual De Usuario

Configuring Web Reputation Filtering

Cisco ISA500 Series Integrated Security Appliances Administration Guide

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Last Check: The date and time of the last check. 

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Last Update: The date and time of the last successful update when the 
signature file is updated successfully. 

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Version: The version number of the IPS signature file that is currently used 
on the security appliance. 

To automatically update the IPS signatures, perform the following steps: 

a. In the Auto Update area, click On to automatically check for signature updates 

from Cisco’s signature server every Monday at 00:00. 

b. Click Save to apply your settings. 

To manually update the IPS signatures at any time, click Check for Update Now to 
check for signature updates from Cisco’s signature server immediately. 

You can also click Check for Updates Now from the Security Services > 
Dashboard page to manually update the IPS signatures.

To manually update the IPS signatures from your local PC, perform the following 
steps: 

a. You must first download the signature file from Cisco’s signature server to your 

local PC. 

b. In the Manually Update Signature Database area, click Browse to locate and 

select the signature file from your local PC.

c. Click Update Database. 

Web Reputation Filtering prevents client devices from accessing dangerous 
websites containing viruses, spyware, malware, or phishing links. Web Reputation 
Filtering detects the web threats based on the reputation score of a web page. 
Reputation scores range from -10 (bad) to +10 (good). Web pages with reputation 
scores below a specific threshold are considered threats and blocked. 

Web Reputation Filtering only monitors and controls the website visits through the 
specified HTTP port. Go to the Security Services > Web URL Filtering > Advanced 
Settings page to view or specify the HTTP port. See