I am Cisco certified and have worked for an ISP for the last 5 years. I have made the transition to the LAN side as a Network Administrator so I am a novice at certain things. With that being said, below is the configuration on one of my ASA5520s. I have changed addressing for security, but this is how it looks.
interface GigabitEthernet0/0.2 nameif Inside security-level 100 ip address 10.x.x.x 255.255.255.248 ! interface GigabitEthernet0/0.4 nameif DMZ security-level 50 ip address 10.x.x.x 255.255.255.248 ! interface GigabitEthernet0/1 nameif Outside security-level 0 ip address 159.x.x.x 255.255.255.0
My question is this: I have four physical ports on the back of my ASA, why don't they show up in the running config ,,,why?
And my second question: is it ok not to have a VLAN associated with my sub-interfaces?