Руководство Пользователя для Cisco Cisco Web Security Appliance S170
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AsyncOS 8.1 for Cisco Web Security User Guide
Chapter 21 Perform System Administration Tasks
AsyncOS for Web Upgrades and Updates
Configuring a Static Address for the Cisco Update Servers
The Cisco 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.
configure a static location for updates and AsyncOS upgrades.
Step 1
Contact Cisco Customer Support to obtain the static URL address.
Step 2
Navigate to the System Administration > Upgrade and Update Settings page, and click Edit Update
Settings.
Settings.
Step 3
On the Edit Update Settings page, in the “Update Servers (images)” section, choose Local Update
Servers and enter the static URL address received in step
Servers and enter the static URL address received in step
Step 4
Verify that Cisco Update Servers is selected for the “Update Servers (list)” section.
Step 5
Submit and commit your changes.
Upgrading from a Local Server
The Web Security appliance can download AsyncOS upgrades from a server within your network instead
of obtaining upgrades directly from the Cisco update servers. When you use this feature, you download
the upgrade image from Cisco once only, and then serve it to all Web Security appliances in your
network.
of obtaining upgrades directly from the Cisco update servers. When you use this feature, you download
the upgrade image from Cisco once only, and then serve it to all Web Security appliances in your
network.
shows how Web Security appliances download upgrade images from local servers.
Figure 21-2
Upgrading from a Local Server
Hardware and Software Requirements for Local Upgrade Servers
For downloading AsyncOS upgrade files, you must have a system in your internal network that has a
web browser and Internet access to the Cisco update servers.
web browser and Internet access to the Cisco update servers.
Local web server with
access to the Internet
access to the Internet
Cisco Update Servers
Web Security Appliances
local HTTP connections
HTTP connection to Internet through firewall