Cisco Cisco Content Security Management Appliance M390 Guía Del Usuario
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AsyncOS 8.1 for Cisco Content Security Management User Guide
Chapter 14 Common Administrative Tasks
Upgrading AsyncOS
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Batch Commands for Upgrades
Batch commands for upgrade procedures are documented in the CLI Reference Guide for AsyncOS for
Email at
Email at
.
Determining Network Requirements for Upgrades and Updates
The Cisco IronPort update servers use dynamic IP addresses. If you have strict firewall policies, you may
need to configure a static location for AsyncOS upgrades. If you determine that your firewall settings
require a static IP for upgrades, contact Cisco Customer support to obtain the required URL addresses.
need to configure a static location for AsyncOS upgrades. If you determine that your firewall settings
require a static IP for upgrades, contact Cisco Customer support to obtain the required URL addresses.
Note
If you have any existing firewall rules allowing download of legacy upgrades from
upgrades.cisco.com
ports such as 22, 25, 80, 4766, they will need to be removed and/or replaced with revised firewall rules.
Choosing an Upgrade Method: Remote vs. Streaming
Cisco provides two methods (or ‘sources’) for upgrading AsyncOS on your appliances:
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Streaming upgrades — Each appliance downloads the AsyncOS upgrades via HTTP directly from
the Cisco IronPort update servers.
the Cisco IronPort update servers.
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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.
to your appliances. Your appliances then download the AsyncOS upgrades from a server within your
network.
. Optionally, use the updateconfig command in the CLI.
Streaming Upgrade Overview
In Streaming upgrades, each Cisco Content Security appliance connects directly to the Cisco IronPort
update servers to find and download upgrades:
update servers to find and download upgrades: