Question 1

What is a Cisco Router IOS License?

Accepted Answer

A Cisco Router IOS License is a software entitlement that authorizes specific features and capabilities on Cisco routers, enabling tailored functionality and compliance management.

Question 2

What are the different Cisco IOS license levels?

Accepted Answer

Cisco IOS license levels include IP Base, Security (SEC), Unified Communications (UC), Application Experience (AppX), Advanced Security (ADVSEC), and Advanced IP Services (ADVIPS), each unlocking distinct feature sets.

Question 3

How do I check the current IOS license on my Cisco router?

Accepted Answer

In privileged EXEC mode, run the commands show license status or show license all to display installed licenses, their status, and expiration details.

Question 4

How do I enable or upgrade a Cisco IOS license?

Accepted Answer

Purchase the required PAK or Smart account entitlement, install it via CLI using license install or register with Smart Licensing, then save the config and reload if prompted.

Question 5

What is the difference between permanent and evaluation Cisco IOS licenses?

Accepted Answer

Permanent licenses provide indefinite access to features, while evaluation licenses grant temporary, time-limited access for testing before full purchase.

Question 6

How does Cisco Smart Licensing work for router IOS?

Accepted Answer

Smart Licensing automates registration, entitlement tracking, and compliance by connecting your router to Cisco Smart Software Manager using a token linked to a virtual account.

Question 7

How do I register a Cisco IOS license in Smart Software Manager?

Accepted Answer

Generate an entitlement token in Cisco Smart Software Manager, then on the router run license smart register idtoken to complete registration.

Question 8

Can I transfer a Cisco IOS license between routers?

Accepted Answer

Yes. Revoke the license from the source device in Cisco Smart Software Manager or Licensing Portal, then assign it to the target router following the transfer process.

Question 9

What happens when my Cisco IOS license expires?

Accepted Answer

Upon expiration, the router reverts to the next lower feature set or evaluation mode, potentially disabling unlicensed features until renewal or replacement.

Question 10

How do I troubleshoot Cisco IOS license compliance issues?

Accepted Answer

Verify Smart account registration, run show license all for error messages, synchronize with Cisco SSM using license smart sync, and resolve any token or connectivity errors.

Question 11

How do I convert a Cisco License PAK to a Smart Account entitlement?

Accepted Answer

Redeem the PAK in Cisco Smart Software Manager by creating a new virtual account or selecting an existing one; the portal converts the PAK into a digital entitlement automatically.

Question 12

How long does it take to activate a Cisco IOS license?

Accepted Answer

Activation usually completes within minutes after installing the PAK or registering via Smart Licensing, provided the router has internet access to Cisco servers.

Question 13

Where can I purchase a Cisco Router IOS License?

Accepted Answer

You can buy Cisco Router IOS Licenses through authorized Cisco partners, the Cisco Commerce Workspace, or directly from Cisco’s online store.

Question 14

What are the benefits of Cisco IOS Security licenses?

Accepted Answer

Cisco IOS Security licenses enable advanced threat defense, firewall, VPN, intrusion prevention, and secure access features to protect enterprise network edges.

Question 15

How do I remove or deactivate a Cisco IOS license?

Accepted Answer

In CLI, use the license clear command followed by write memory, or revoke the entitlement in Cisco Smart Software Manager to deactivate the license.

Question 16

What is Cisco IOS feature on-demand licensing?

Accepted Answer

Feature on-demand licensing allows dynamic enabling or disabling of software features on supported routers without hardware changes, based on purchased entitlements.

Question 17

How do I upgrade from IP Base to Advanced Security license on Cisco routers?

Accepted Answer

Order the ADVSEC PAK or entitlement, install it via license install or Smart Licensing, save the configuration, and reload the router to activate Advanced Security features.

Router License Cisco IOS Software

SLASR1-AES=-Cisco ASR1000 License SLASR1-A ES

SL-19-DATA-K9=-Cisco 1900 IOS License SL-19-D ATA-K9= Data License for Cisco 1900

L-SLASR1-AIS=-ASR 1000 ADVANCED IP SVCS EDEL IVERY PAK

L-SL-39-APP-K9=-APPX LICS WITH DATA WAASX AND WAAS/VWAAS 2500CONNS RTU

L-SLASR1-AES=-ADVANCED ENTERPRISE SVCS ESD P K FOR ASR 1000

L-SL-29-DATA-K9=-DATA E-DELIVERY PAK FOR CISCO 2901-2951

SL-880-AIS=-CISCO 880 ADVANCED IP SERVICES LICS

L-SL-19-SEC-K9=-SECURITY E-DELIVERY PK FOR 190 0

SLASR1-IPB-AIS=-Cisco ASR1000 License SLASR1-I PB-AIS=

L-SL-19-SECNPE-K9=-Cisco 1900 IOS License L-SL-19 -SECNPE-K9 SEC No Payload Encryption E PAK for Cisco 1900

L-SLASR1-IPB-AIS=-UPG AIS FROM IPB E-DELIVERY PA K FOR ASR 1000

SL-29-DATA-K9=-DATA PAPER PAK FOR 2901-2951

L-FL-29-HSEC-K9=-U.S. EXPORT RESTRICTION COMPLI ANCE LICENSE FOR 2921/2951

L-SLASR1-IPB-AES=-Cisco ASR1000 License L-SLASR1 -IPB-AES

L-FL-39E-HSEC-K9=-US EXPORT RESTRICTION COMPLIAN CE LICENSE FOR 3900E SERIES

SL-29-SEC-K9=-Cisco 2900 License SL-29-SEC-K 9= Security License for Cisco 2901-2951

L-SL-39-DATA-K9=-Cisco 3900 License L-SL-39-DAT A-K9 E-Delivery PAK for Cisco 3900 Series

FL-AXP-SM-GP-FL-AXP-SM-GP Permanent License for AXP on SM-SRE Platform

FL-C3900-WAASX-WAASX FEATURE LICENSE RTU PAPE R FOR 3900

SL-ES3G-16-IPS-SL-ES3G-16-IPS IP Services Lic ense Upgrade 16 Port GE ES3 EtherSwitch

Filters

Questions & Answers

What is a Cisco Router IOS License?

What are the different Cisco IOS license levels?

How do I check the current IOS license on my Cisco router?

How do I enable or upgrade a Cisco IOS license?