I've got an ASA 5505 firewall with internal interface 192.168.65.1 on port 1 and a WAP connected to port 5 with the address 10.10.1.1. The WAP has two SSIDs configured; one is on VLAN 1 and the other on VLAN 14. The firewall has port 5 configured as a trunk for VLAN 1,14 and the interface was configured a VLAN 14.
If I connect to the WAP using the SSID on VLAN 1 I get an address of 192.168.x.x from our internal DHCP server and have full connectivity to the internal and external networks. If I connect to the SSID on VLAN 14 I get an address of 10.10.1.x from the firewall DHCP server but am unable to connect to anything.
When connecting to the SSID on VLAN 14 I want to be able to access the external interface but not anything internally. I have configured a firewall access rule to allow 10.10.1.0/24 to outside and deny 10.10.1.0/24 to 192.168.0.0/16 but this hasn't worked.