Pessoal, como consigo configurar no ClearOS para que uma vLAN específica nao passe pelas regras do firewall?

In a VLAN the packets for TCP/IP are 'tagged' with a header to encapsulate for the VLAN. If you set up a VLAN interface in ClearOS then ClearOS will tag the packets and this interface should be connected to a switch with a trunk port. On the switches, you can set untagged ports which mean that the server/workstation/PC interface connected does not need a special configuration and the switch will manage the tagging of the packet for transmission across the network. VLAN capable switches can have multiple VLANs on a trunk port to allow for a single server interface to have multiple networks. Using this method, for example, you can setup gateway mode in ClearOS with just one NIC.

Thank you for your reply sir

Just so you can see an example - one of my ClearOS 7.3 machines - two images...

Each VLAN is assigned a specific id. This id is a number and can usually be anything between 1 and 4094. VLAN 1 is most commonly used for management so this should not normally be used. Number 0 is actually a special case - google for use...

There is a wealth of information on the internet about VLANs. Start your browser and start searching with google - rather than "Please provide me a complete guide for this" - they already exist - just go find them yourself...