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software license of ASA5510 to enable Failover

     I have two ASA5510. I want to make failover between the two firewalls. However, when I use the command "show version", the display shows that the Failover is disabled. Anyone can help me?

     Here is the output of "show version":

Licensed features for this platform:

Maximum Physical Interfaces         : Unlimited

Maximum VLANs                          : 50       

Inside Hosts                                  : Unlimited

Failover                                         : Disabled

VPN-DES                                     : Enabled  

VPN-3DES-AES                            : Disabled 

Security Contexts                          : 0        

GTP/GPRS                                   : Disabled 

SSL VPN Peers                             : 2        

Total VPN Peers                            : 250      

Shared License                              : Disabled

AnyConnect for Mobile                    : Disabled 

AnyConnect for Cisco VPN Phone  : Disabled 

AnyConnect Essentials                  : Disabled 

Advanced Endpoint Assessment     : Disabled 

UC Phone Proxy Sessions             : 2        

Total UC Proxy Sessions               : 2        

Botnet Traffic Filter                         : Disabled 

This platform has a Base license.


software license of ASA5510 to enable Failover

Hello Liwei,

Security Plus license is required on both units in order to enable failover,

Check my blog at for further information.


Julio Carvajal Segura

Looking for some Networking Assistance? Contact me directly at I will fix your problem ASAP. Cheers, Julio Carvajal Segura
New Member

software license of ASA5510 to enable Failover

Thank you very much. I will let you know if it works.