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Hardware Installation Guide for the Cisco 4000 Series Integrated Services Router
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Chapter 1 Overview of Cisco 4000 Series ISRs
Locate Product Identification Details
Locate Product Identification Details
Software License
To obtain a software license, you need a product authorization key (PAK) and the unique device
identifier (UDI) of the device where the license is to be installed.
The serial number (SN), product ID (PID), version ID (VID), and Common Language Equipment
Identifier (CLEI) are printed on a label on the back of the router or on a label tray located on the router
chassis or motherboard. The UDI can be viewed using the show license udi command in privileged Exec
mode in Cisco Internet Operating System (IOS) software. For additional information on the UDI or how
to obtain a PAK, see the Cisco Software Activation on Integrated Services Routers and Cisco Integrated
Service Routers Generation 2 document at cisco.com.
The UDI has two main components:
• Product ID (PID)
• Serial number (SN)
Labels on Cisco 4000 Series ISRs
Though your router may be different from the one shown in Figure 1-25, the label location is similar for
all routers in Cisco 4000 Series ISRs. Figure 1-25 shows the location of the labels on Cisco 4451-X ISR.
Figure 1-25 Label Location on Cisco 4451-X ISR
Additional Help Locating Cisco 4000 Series ISRs Labels
Use the Cisco Product Identification (CPI) tool to find labels on the router. The tool provides detailed
illustrations and descriptions of where labels are located on Cisco products. It includes the following
features:
1 Product ID 2 Serial Number
3 PID/VID 4 CLEI
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