My Network Security Journal: January 2021

I had to configure a pair of Cisco ASA 5506-X firewalls and apply a Security Plus license in order to support the Active/Standby Failover (High Availability) feature. You'll find the comparison between the Base license vs. Security Plus license feature on this link.

You'll be prompted a warning message for the lack of failover license support when you try to configure the standby (failover) IP address on an ASA interface.

ASA5506-X(config-if)# interface BVI1

ASA5506-X(config-if)# nameif inside

ASA5506-X(config-if)# security-level 100

ASA5506-X(config-if)# ip address 192.168.1.1 255.255.255.0 standby 192.168.1.2

WARNING: Cannot configure standby IP address because this unit lack failover license support.

ASA5506-X# show version

Cisco Adaptive Security Appliance Software Version 9.8(2)

Firepower Extensible Operating System Version 2.2(2.52)

Device Manager Version 7.8(2)

Compiled on Thu 02-Apr-20 10:19 PDT by builders

System image file is "disk0:/asa982-lfbff-k8.SPA"

Config file at boot was "startup-config"

ASA5506-X up 25 mins 29 secs

Hardware: ASA5506, 4096 MB RAM, CPU Atom C2000 series 1250 MHz, 1 CPU (4 cores)

Internal ATA Compact Flash, 8000MB

BIOS Flash M25P64 @ 0xfed01000, 16384KB

Encryption hardware device : Cisco ASA Crypto on-board accelerator (revision 0x1)

Number of accelerators: 1

1: Ext: GigabitEthernet1/1 : address is bc5a.5681.d596, irq 255

2: Ext: GigabitEthernet1/2 : address is bc5a.5681.d597, irq 255

3: Ext: GigabitEthernet1/3 : address is bc5a.5681.d598, irq 255

4: Ext: GigabitEthernet1/4 : address is bc5a.5681.d599, irq 255

5: Ext: GigabitEthernet1/5 : address is bc5a.5681.d59a, irq 255

6: Ext: GigabitEthernet1/6 : address is bc5a.5681.d59b, irq 255

7: Ext: GigabitEthernet1/7 : address is bc5a.5681.d59c, irq 255

8: Ext: GigabitEthernet1/8 : address is bc5a.5681.d59d, irq 255

9: Int: Internal-Data1/1 : address is bc5a.5681.d595, irq 255

10: Int: Internal-Data1/2 : address is 0000.0001.0002, irq 0

11: Int: Internal-Control1/1 : address is 0000.0001.0001, irq 0

12: Int: Internal-Data1/3 : address is 0000.0001.0003, irq 0

13: Ext: Management1/1 : address is bc5a.5681.d595, irq 0

14: Int: Internal-Data1/4 : address is 0000.0100.0001, irq 0

Licensed features for this platform:

Maximum Physical Interfaces : Unlimited perpetual

Maximum VLANs : 5 perpetual

Inside Hosts : Unlimited perpetual

Failover : Disabled perpetual

Encryption-DES : Enabled perpetual

Encryption-3DES-AES : Enabled perpetual

Carrier : Disabled perpetual

AnyConnect Premium Peers : 2 perpetual

AnyConnect Essentials : Disabled perpetual

Other VPN Peers : 10 perpetual

Total VPN Peers : 12 perpetual

AnyConnect for Mobile : Disabled perpetual

AnyConnect for Cisco VPN Phone : Disabled perpetual

Advanced Endpoint Assessment : Disabled perpetual

Shared License : Disabled perpetual

Total TLS Proxy Sessions : 2 perpetual

Botnet Traffic Filter : Disabled perpetual

Cluster : Disabled perpetual

This platform has a Base license.

Serial Number: JAD24111234

Running Permanent Activation Key: 0xd71be575 0xb069db6f 0xb0523db4 0x949058c8 0x44221234

Configuration register is 0x1

Image type : Release

Key Version : A

Configuration last modified by enable_15 at 11:56:07.469 UTC Tue Nov 10 2020

You'll need to register and retrieve the license key in the Cisco Licensing portal. Next, apply the license key using the global config activation-key <KEY> command and issue a reload for the license to take effect.

ASA5506-X(config-if)# activation-key 3c2dfa64 2c9281c9 5491edd8 8b4c40a4 cb356789

Validating activation key. This may take a few minutes...

Failover is different.

running permanent activation key: Restricted(R)

new permanent activation key: Unrestricted(UR)

WARNING: The running activation key was not updated with the requested key.

Proceed with update flash activation key? [confirm] <ENTER>

The flash permanent activation key was updated with the requested key,

and will become active after the next reload.

ASA5506-X(config-if)# end

ASA5506-X# reload

Proceed with reload? [confirm]

ASA5506-X#

***

*** --- START GRACEFUL SHUTDOWN ---

Shutting down isakmp

Shutting down webvpn

Shutting down sw-module

Shutting down License Controller

Shutting down File system

***

*** --- SHUTDOWN NOW ---

Process shutdown finished

Rebooting... (status 0x9)

Notice the ASA 5506-X now has the Security Plus license as well as the Maximum VLANs is now 30, Failover has been enabled for Active/Standby and VPN peers was increased to 50 (for AnyConnect VPN). The support for AnyConnect requires a separate AnyConnect Plus or Apex license.