I have a Cisco ASA 5510 and need to use it to route between VLANs as i don't have a router for the time being. I have been reading online and it is possible as it is a layer 3 device, although I can't seem to get it working.
I have an inside, outside and a DMZ. The DMZ is in the IP range 220.127.116.11/24 and in vlan 80 and the inside is in the IP range 10.192.3.0/24 and in vlan 10. These are the 2 vlan/ip ranges I need to communicate.
On the switch I am using the config commands:
switchport trunk allowed vlan all
switchport mode trunk
Then ports 1 to 36 are placed on vlan 10 and ports 37 to 47 are on vlan 80; all set for access mode.
On the ASA i am using the config:
Interface Ethernet 0/3
No ip address
Interface Etherenet 0/3.1
Ip address 18.104.22.168 255.255.255.0
Interface Etherenet 0/3.2
Ip address 10.192.3.2 255.255.255.0
I thought the problem may be because I don't have any encapsulation on the trunking ports. The ASA command "vlan 10" apparently encapsulates in dot1q automatically, but i can't seem to find where to do this on the switch: the switch is a catalyst 2960.
Hopefully someone can help me get these 2 lans communicating.