Cisco Cisco Content Security Management Appliance M1070 Mode D'Emploi

Cisco provides two methods (or ‘sources’) for upgrading AsyncOS on your appliances: 

Streaming upgrades — Each appliance downloads the AsyncOS upgrades via HTTP directly from 
the Cisco content security update servers. 

Remote upgrades — You only download the upgrade image from Cisco one time, and then serve it 
to your appliances. Your appliances then download the AsyncOS upgrades from a server within your 
network. 

You will configure the upgrade method in 

. Optionally, use the updateconfig command in the CLI. 

In Streaming upgrades, each Cisco Content Security appliance connects directly to the Cisco content 
security update servers to find and download upgrades:

This method requires that your appliance contacts the Cisco content security update servers directly from 
the network.

You can also download and host updates to AsyncOS locally from within your own network (Remote 
Upgrade) rather than obtaining updates directly from the Cisco update servers (Streaming Upgrades). 
Using this feature, an encrypted update image downloaded via HTTP to any server in your network that 
has access to the Internet. If you choose to download the update image, you can then configure an 
internal HTTP server (an “update manager”) to host the AsyncOS images to your Security Management 
appliances.