How To Configure Trunk And Access Ports On The SonicWall Switch?
06/09/2020 
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DESCRIPTION:
Access port: A port that can be assigned to a single VLAN. The frames that arrive on an access port are assumed to be part of the access VLAN. This port type is configured on switch ports that are connected to devices with a normal network card, for example a host on a network.
Trunk port: This port type can carry traffic of multiple VLANs, thus allowing you to extend VLANs across your entire network. Frames are tagged by assigning a VLAN ID to each frame as they traverse between switches.
This article explains the steps to configure a port on the SonicWall switch as trunk or access port.
RESOLUTION:
The VLANs are supposed to be added on the firewall and can then be referenced by the SonicWall switch. Please refer to How Can I Configure Sub-Interfaces? for creating VLANs on the firewall.
EXAMPLE: We have VLAN 60 and 90 under interface X2 and VLAN 70 and 75 under X5. Port 23 of the switch is used as a common uplink for provisioning the switch through the firewall connected to interface X2. Port 3 of the switch is a dedicated uplink for X5.
