A-4
Cisco ASDM User Guide
OL-16647-01
Appendix A Feature Licenses
ASA 5540 Feature Licenses
ASA 5540 Feature LicensesASA 5550 Feature Licenses
Table A-4 ASA 5540 Adaptive Security Appliance License Features
ASA 5540 Base License
Users, concurrent Unlimited Unlimited
Security Contexts 2 Optional licenses:
510 20 50
VPN Sessions1
1. Although the maximum IPSec and Clientless SSL VPN sessions add up to more than the maximum VPN sessions, the combined sessions should not
exceed the VPN session limit. If you exceed the maximum VPN sessions, you can overload the security appliance, so be sure to size your network
appropriately.
5000 combined IPSec and Clientless SSL VPN
Max. IPSec Sessions 5000
Max. Clientless SSL
VPN Sessions
2Optional Licenses:
10 25 50 100 250 500 750 1000 2500
VPN Load Balancing Supported
TLS Proxy for SIP and
Skinny Inspection
Supported
Failover Active/Standby or Active/A ctive
GTP/GPRS None Optional license: Enabled
Max. VLANs 200
Concurrent Firewall Conns2
2. The concurrent firewall connections are based on a traffic mix of 80% TCP and 20% UDP, with 1 host and 1 dynamic translation for every 4 connections.
400 K
Max. Physical Interfaces Unlimited
Encryption Base (DES) Optional license: Strong (3DES/AES)
Min. RAM 1 GB (default)
Table A-5 ASA 5550 Adaptive Security Appliance License Features
ASA 5550 Base License
Users, concurrent Unlimited
Security Contexts 2 Optional licenses:
510 20 50
VPN Sessions15000 combined IPSec and Clientless SSL VPN
Max. IPSec Sessions 5000
Max. Clientless SSL
VPN Sessions
2Optional Licenses:
10 25 50 100 250 500 750 1000 2500 5000