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2024 Revised Edition: How to Check Cisco Product Serial Numbers?

Aug, 29, 2024 Hi-network.com

Do you have no idea how to check your Cisco products’ serial number? Whether you’re dealing with Cisco routers, Cisco switches, Cisco firewalls or other devices, knowing how to check the serial number is crucial for various tasks. In this article, we’ll share updated ways to check the serial number for some Cisco models in 2024, including troubleshooting, licensing, and support purposes.

2024 Revised Edition: How to Check Cisco Product Serial Numbers?

Why Checking the Serial Number is Important

Knowing your Cisco product’s serial number is essential for:

  1. Buying licenses: You need to check the UDI (Unique Device Identifier).

  2. Buying Smartnet: You need to check the serial number.

  3. Troubleshooting or returns: You need to check the serial number.

Updated Methods for Checking Serial Numbers in 2024

In the following tables, we summarize how to find the serial numbers for different Cisco product categories. We have also updated the commands to reflect any changes or additions up to 2024.

Routers

ModelBuy License (Check UDI)Buy Smartnet (Check Serial No.)Troubleshooting/Return (Check Serial No.)
cisco1921/1941show version or check the box tag, or check the serial number at the bottom of the deviceshow versionshow version
cisco 2900 routershow version or check the box tag, or check the serial number at the bottom of the deviceshow versionshow version
ISR4221/K9show version or check the box tag, or check the serial number at the bottom of the deviceshow versionshow version
cisco 3900 routershow license udishow versionshow version
ISR4321/K9show license udishow versionshow version
ISR4331/K9show license udishow versionshow version
ISR4351/K9show license udishow versionshow version
ISR4431/K9show license udishow versionshow version
ISR4451-X/K9show license udishow versionshow version
ISR 1100show license udishow versionshow version
ISR 4221show license udishow versionshow version

Switches

ModelBuy License (Check UDI)Buy Smartnet (Check Serial No.)Troubleshooting/Return (Check Serial No.)
2960xshow versionshow versionshow version
C3850No registration (RTU license)show versionshow version
C3650No registration (RTU license)show versionshow version
C9300show versionshow versionshow version
C9200show versionshow versionshow version
C9400show versionshow versionshow version
C9500show versionshow versionshow version
C9600show versionshow versionshow version
C1000show versionshow versionshow version

Firewalls

ModelBuy License (Check UDI)Buy Smartnet (Check Serial No.)Troubleshooting/Return (Check Serial No.)
ASA5506show versionCheck serial number on the box or device’s bottomCheck serial number on the box or device’s bottom
ASA5508show versionCheck serial number on the box or device’s bottomCheck serial number on the box or device’s bottom
ASA5516show versionCheck serial number on the box or device’s bottomCheck serial number on the box or device’s bottom
ASA5525show versionCheck serial number on the box or device’s bottomCheck serial number on the box or device’s bottom
ASA5545show versionCheck serial number on the box or device’s bottomCheck serial number on the box or device’s bottom
ASA5585show versionCheck serial number on the box or device’s bottomCheck serial number on the box or device’s bottom
Firepower 1010show versionCheck serial number on the box or device’s bottomCheck serial number on the box or device’s bottom
Firepower 1120show versionCheck serial number on the box or device’s bottomCheck serial number on the box or device’s bottom
Firepower 1140show versionCheck serial number on the box or device’s bottomCheck serial number on the box or device’s bottom

IP Phones

ModelBuy License (Check UDI)Buy Smartnet (Check Serial No.)Troubleshooting/Return (Check Serial No.)
7800 seriesN/Ashow versionCheck serial number on the box or device’s bottom
8800 seriesN/Ashow versionCheck serial number on the box or device’s bottom
6900 seriesN/Ashow versionCheck serial number on the box or device’s bottom

Wireless APs

ModelBuy License (Check UDI)Buy Smartnet (Check Serial No.)Troubleshooting/Return (Check Serial No.)
AP1800/2800/3800N/Ashow versionCheck serial number on the box or device’s bottom
AP4800N/Ashow versionCheck serial number on the box or device’s bottom
Catalyst 9100N/Ashow versionCheck serial number on the box or device’s bottom

Wireless Controllers

ModelBuy License (Check UDI)Buy Smartnet (Check Serial No.)Troubleshooting/Return (Check Serial No.)
CT2504Check serial number on the box or device’s bottomCheck serial number on the box or device’s bottomCheck serial number on the box or device’s bottom
CT3504No registration (RTU license)Check serial number on the box or device’s bottomCheck serial number on the box or device’s bottom
CT5508Check serial number on the box or device’s bottomCheck serial number on the box or device’s bottomCheck serial number on the box or device’s bottom
CT5520No registration (RTU license)Check serial number on the box or device’s bottomCheck serial number on the box or device’s bottom
Catalyst 9800No registration (RTU license)Check serial number on the box or device’s bottomCheck serial number on the box or device’s bottom

Common Commands for Cisco Devices

Here are some of the most useful commands to check various parameters and status of Cisco devices:

CommandDescription
terminal length 0Set terminal display without restriction
show versionView version, equipment running time
show inventoryView serial number SN
show licenseView device licenses
show clockView device clock information
show fanView fan status
show powerView power status
show env allCheck equipment temperature, power supply, fan operating parameters, and alarms
show cpuView CPU usage
show memoryView memory usage
show bootflashView flash memory status
show logView log information
show running-configView device configuration
show ip protocolView routing protocol configuration
show ip routeView routing table
show ip route summaryView route summary
show ip interface briefView the IP simple configuration information of all interfaces
show proc cpuView CPU usage
show proc cpu historyView CPU history
show proc memView memory usage
dirView flash memory contents
show vlanView VLAN configuration
show diag busView router expansion port information
show moduleView switchboard information
show bufferView system cache status
show cdp neighborsView basic information of linked Cisco devices
show ip ospf neighborsView OSPF link status
For Cisco product list and quote, please visit: https://www.hi-network.com/categories/cisco or contact us at www.hi-network.com  (Email: [email protected])

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