Hi,
You can only do this on an ASA5505 which has a built in switch module.
On the other ASA models you will create a Trunk from one of the Physical interfaces of the ASA. You do this by creating sub interface for a certain Vlan and not a Vlan interface
For example you have the physical interface
interface GigabitEthernet0/0
description Trunk
no nameif
no security-level
no ip address
interface GigabitEthernet0/0.100
description VLAN 100
vlan 100
nameif vlan-100
security-level 100
ip add 10.10.100.1 255.255.255.0
interface GigabitEthernet0/0.200
description VLAN 200
vlan 200
nameif vlan-200
security-level 100
ip add 10.10.200.1 255.255.255.0
And so on for example
Hope this helps If so, remember to rate the answer. Do ask more if needed
- Jouni
