Cisco ASA Security Levels

Hi Rene,

I have a similar ? like one of the others, im using packet tracer and with the 5505…I cant create a DMZ, it lets me create all except when I try and create NAMEIF it gives me:

ciscoasa(config-if)#nameif dmz
ERROR: This license does not allow configuring more than 2 interfaces with nameif and without a "no forward" command on this interface or on 1 interface(s) with nameif already configured.

and the show ver - shows 3 vlans with DMZ restricted -

Licensed features for this platform:
Maximum Physical Interfaces       : 8              perpetual
VLANs                             : 3              DMZ Restricted
Dual ISPs                         : Disabled       perpetual

Please explain why. Thanks