I am trying to set up my ASA 5510 inside interface with sub-interfaces because I need to allow for more than one VLAN on the same physical interface. I have the ASA configured for the subinterfaces and pointing to vlan 10. I have the switch port on my core swith where the ASA inside interface plugs into set up as a trunk port with vlan 10. When I try to access my ASA from inside the network I cannot connect. Here's a sample of each config:
ASA
interface Ethernet0/1
speed 100
duplex full
no nameif
no security-level
no ip address
interface Ethernet0/1.1
description Inside
vlan 10
nameif inside
security-level 100
ip address 10.128.1.254 255.255.0.0
Core Switch port
interface GigabitEthernet4/16
switchport trunk encapsulation dot1q
switchport trunk native vlan 10
switchport mode trunk
duplex full
qos trust dscp
auto qos voip trust
tx-queue 3
priority high
shape percent 33
spanning-tree portfast
service-policy output autoqos-voip-policy
If I set up the inside interface without the sub-interface and leave the switchport as an access port I can get to my ASA fine. However I need the VLANs for a current project I'm working on. I've looked at lots of documentation and from what I've read everything looks fine. What am I missing?
Thanks.
