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Chapter 9 Configuring Switch Ports and VLAN Interfaces for the Cisco ASA 5505 Adaptive Security Appliance
Interface Overview
With the Base license, the third VLAN can only be configured to initiate traffic to one other VLAN. See
Figure 9-1 for an example network where the Home VLAN can communicate with the Internet, but
cannot initiate contact with Business.
Figure 9-1 ASA 5505 Adaptive Security Appliance with Base License
With the Security Plus license, you can configure 20 VLAN interfaces. You can configure trunk ports to
accomodate multiple VLANs per port.
Note The ASA 5505 adaptive security appliance supports Active/Standby failover, but not Stateful failover.
See Figure 9-2 for an example network.
Figure 9-2 ASA 5505 Adaptive Security Appliance with Security Plus License
ASA 5505
with Base License
Business
Internet
Home
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ASA 5505
with Security Plus
License
Failover
ASA 5505
Inside
Backup ISP
Primary ISP
DMZ
Failover Link
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