Руководство Пользователя для Cisco Cisco Content Security Management Appliance M160

Скачать
Страница из 441
 
14-17
AsyncOS 8.1 for Cisco Content Security Management User Guide
 
Chapter 14      Common Administrative Tasks
Upgrading AsyncOS
  •
  •
  •
  •
 
  •
  •
  •
  •
Batch Commands for Upgrades 
Batch commands for upgrade procedures are documented in the CLI Reference Guide for AsyncOS for 
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. 
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: 
  •
Streaming upgrades — Each appliance downloads the AsyncOS upgrades via HTTP directly from 
the Cisco IronPort 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. 
Streaming Upgrade Overview
In Streaming upgrades, each Cisco Content Security appliance connects directly to the Cisco IronPort 
update servers to find and download upgrades: