The ability to create sub-interfaces (802.1q VLAN ID) on a Next-Generation Firewall (NGFW) depends on the specific firewall and its capabilities. While support for LACP (Link Aggregation Control Protocol) is often included in NGFWs, the ability to create sub-interfaces may not be available on all models or brands.

If you need to create VLANs on your NGFW, you should check the documentation or contact the vendor to confirm if the firewall supports sub-interfaces and how to configure them. In general, to configure sub-interfaces on an NGFW that supports them, you would typically do the following:

Configure the physical interface with the VLAN tagging protocol (802.1q) and assign a VLAN ID to it.

Create a sub-interface for each VLAN, specifying the VLAN ID and any additional configuration options, such as IP address and subnet mask.

Configure the appropriate firewall rules for each VLAN and sub-interface, to control traffic flow between them and the rest of the network.

Again, the specific steps and options may vary depending on the NGFW you are using, so it's important to consult the documentation or vendor support for guidance.

The ability to create sub-interfaces (802.1q VLAN ID) on a Next-Generation Firewall (NGFW) depends on the specific firewall and its capabilities. While support for LACP (Link Aggregation Control Protocol) is often included in NGFWs, the ability to create sub-interfaces may not be available on all models or brands.

If you need to create VLANs on your NGFW, you should check the documentation or contact the vendor to confirm if the firewall supports sub-interfaces and how to configure them. In general, to configure sub-interfaces on an NGFW that supports them, you would typically do the following:

Configure the physical interface with the VLAN tagging protocol (802.1q) and assign a VLAN ID to it.

Create a sub-interface for each VLAN, specifying the VLAN ID and any additional configuration options, such as IP address and subnet mask.

Configure the appropriate firewall rules for each VLAN and sub-interface, to control traffic flow between them and the rest of the network.

Again, the specific steps and options may vary depending on the NGFW you are using, so it's important to consult the documentation or vendor support for guidance.