The Wireless Mode and [Network Mode] work together to determine the behavior of your device.
Station and Router for a wireless router/gateway.
Station and Bridge for bridge with bi-directional layer 2 NAT.
Station WDS and Bridge for a transparent bridge.
Station WDS and Router for a wireless router/gateway (using 4-address frames).
Access Point to support only Station nodes.
Access Point WDS to support Station and transparent bridges from Station WDS nodes.
(Optionally, add other APs as peers (or use 'auto') for transparent bridges between APs of the same SSID and channel).