Cisco Cisco License Manager SDK Libro bianco
Deployment Guide
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Deploying Cisco License Manager 3.1 in
Isolated Networks
Isolated Networks
Last updated: May 2011
Abstract
Cisco
®
License Manager is a lightweight, GUI-based application for managing Cisco IOS
®
Software activation and
licenses for many Cisco devices such as Cisco Catalyst
®
3560-E/X and 3750-E/X Series Switches. It automates
the licensing workflows associated with fulfillment and accelerates deployment of licenses in customer networks.
Cisco License Manager resides at the customer premises and securely communicates with Cisco devices in the
customer network to automatically build an inventory of software licenses in the customer network. In addition, it
securely interacts with the license server at Cisco.com for license fulfillment, and it generally requires Internet
connectivity from the host on which Cisco License Manager is installed. Some customers have isolated networks
with no Internet connectivity and therefore may not be able to make full use of Cisco License Manager
functionality. This paper describes how to deploy Cisco License Manager in these scenarios to be able to securely
use its full functionality.
Introduction
Some customers, especially in government, the financial, and healthcare market segments, keep their networks
isolated from the Internet for security reasons. There is no Internet connectivity from their network operations
centers. As a result, these customers cannot use the full functionality of Cisco License Manager. They can
automatically discover Cisco devices with licensing capability and build up and maintain a network wide inventory
of licenses. However, any functionality related to license fulfillment, such as retrieving SKU information from a
Product Authorization Key (PAK), obtaining licenses by associating devices with PAKs, and collecting all the
licenses for a device, cannot be used because these functions require secure Internet connectivity to the license
server at Cisco.com.
Approaches
You can take advantage of the full functionality of Cisco License Manager deployed in isolated networks using four
approaches:
1. Manual license fulfillment
2. Use of proxy servers to access Cisco.com
3. Two-stage deployment
4. Two-host deployment
Note:
All the scripts mentioned in this document are located in <$CLMHome>/bin, where <$CLMHome> is the
directory in which the Cisco License Manager server is installed.