Hello,
You need to provide more details.
Are you trying to trunk from the Cisco Catalyst switch onto the AP? What are you trying to achieve? Also the hardware model would help to understand the setup better.
If for example, you wanted to setup a trunk on a Cisco Catalyst 3560 switch interface fa0/1, you would have the config as below;
interface fa0/1
switchport trunk encapsulation dot1q
switchport trunk allowed vlan XX,XY,XYZ
switchport mode trunk
The XX,XY,XYZ being the vlan ids you want to allow over the trunk link. I don't know much about the Netgear AP, whether they support 802.1q, but someone here may be able to clarify that, hopefully.
HTH