What is the reference of the item needed to enable asa failover ?
no, that is only if you are setting up additional SSL vpn connections. The ASA's are limited to 2 ssl vpn connections with the basic license & security plus license.
this is pretty much what I order when doing a pair of 5510's with failover/security plus license. note some part numbers have changed due to software ie ASA-7.0-K8
Product Description Quantity
ASA5510-AIP10-K9 ASA 5510 Appliance with AIP-SSM-10, SW, 3FE, 3DES/AES 2
ASA5510-SEC-PL ASA 5510 Security Plus License w/ A/S HA, more VLANs + conns 2
CAB-AC Power Cord,110V 2
SF-ASA-7.0-K8 ASA 5500 Series Software v7.0 2
ASA5500-ENCR-K9 ASA 5500 Strong Encryption License (3DES/AES) 2
ASA-AIP-10-INC-K9 ASA 5500 AIP Security Services Module-10 included w/ bundles 2
SF-ASA-AIP-5.0-K9 ASA 5500 Series AIP Software 5.0 for Security Service Module 2
ASA-VPN-CLNT-K9 Cisco VPN Client Software (Windows, Solaris, Linux, Mac) 2
CWVMS-2.3-WINB-K9 VMS 5 Device Basic License 2
CON-SU1-AS1A10K9 IPS SVC, AR NBD ASA5510 w/ AIP-SSM-10, 3 FE, 3DES/AES 2
CON-SU1-ASAINC10 IPS SVC, AR NBD AIP SSM-10 included in ASA systems 2
you will first need the security plus license to enable failover if you are running ASA 5510's otherwise if you are running 5520's and higher then follow the steps in the example located here: