Hi There, this is tearing my hair our!

Objective: Switchport fastEthernet 0/0/0 is untagged VLAN1 and tagged VLAN2

RTR01#interface fastEthernet 0/0/0
RTR01(config-if)##switchport mode ?
  access        Set trunking mode to ACCESS unconditionally
  dot1q-tunnel  set trunking mode to TUNNEL unconditionally
  trunk         Set trunking mode to TRUNK unconditionally

it seems I can only really use access (single untagged VLAN only) or trunk (both VLANs Tagged) - I don't really dot1q-tunnel

Anyone with some insight into what I am missing?