Cisco Cisco Email Security Appliance C160 Mode D'Emploi

If you are upgrading clustered machines, please see 

. 

The Cisco appliance can connect directly to the Cisco update servers to find and download upgrades and 
updates:

Cisco Systems uses a distributed server architecture to make sure customers can quickly download 
AsyncOS upgrades and service updates wherever in the world they are located. Because of this 
distributed server architecture, the Cisco update servers use dynamic IP addresses. If you have strict 
firewall policies, you may need to configure a static location instead. For more information, see 

You will need to create a firewall rule to allow downloading of upgrades from Cisco update servers on 
ports 80 and 443. 

The Cisco IronPort upgrade and update servers use dynamic IP addresses. If you have strict firewall 
policies, you may need to configure a static location for updates and AsyncOS upgrades. 

Contact Cisco Customer support to obtain the static URL address.

Create a firewall rule to allow downloading of upgrades and updates from the static IP address on port 80.

Choose Security Services > Service Updates. 

Click Edit Update Settings.

On the Edit Update Settings page, in the “Update Servers (images)” section, choose Local Update 
Servers and enter the static URL received in step 

 in the Base URL field for AsyncOS upgrades and 

McAfee Anti-Virus definitions. 

Verify that IronPort Update Servers is selected for the “Update Servers (list)” section.

Submit and commit your changes.