You can apply a local VLAN override at the network level by navigating to Security & SD-WAN > Addressing & VLANs, however the available local override options are limited: You can only modify the VLAN interface IP address and its associated subnet range for each VLAN. This allows you to select a different subnet from the template’s defined pool for that VLAN. The ability to change per-port VLAN assignments (such as assigning specific VLANs to individual MX LAN ports) is not available for MX appliances when bound to a template. Per-port VLAN controls are only available for stand-alone MX networks, not for template-bound ones. If you require granular per-port VLAN assignment, you would need to unbind the network from the template or use a stand-alone network configuration. For template-bound MX networks, only the VLAN interface IP and subnet can be locally overridden.
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