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Hello Friends, <br />
<br />
I am going to deploy a network with multiple VLANs, i have been using cisco firewall but this time the customer is short on money so had to install DELL firewall there. Now the thing is that, &nbsp;I want to add multiple VLANs 2 or more and want to grant them access the internet, please correct me if i am wrong<br />
<br />
1. I will have to create sub-interfaces for each vlan on switchport where i will connect Sonic-wall and configure that port as trunk &amp;&nbsp;configure virtual sub interfaces on firewall (X0) LAN interface, ?<br />
<br />
2. NAT policy , I have multiple subnets i want to create inbount/outbound NAT policy what is the best practise ?
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Hello Friends, 

I am going to deploy a network with multiple VLANs, i have been using cisco firewall but this time the customer is short on money so had to install DELL firewall there. Now the thing is that,  I want to add multiple VLANs 2 or more and want to grant them access the internet, please correct me if i am wrong

1. I will have to create sub-interfaces for each vlan on switchport where i will connect Sonic-wall and configure that port as trunk & configure virtual sub interfaces on firewall (X0) LAN interface, ?

2. NAT policy , I have multiple subnets i want to create inbount/outbound NAT policy what is the best practise ?

NAT Policy over TZ300

Hardware-based firewalls provide more sophisticated protection for inbound and outbound traffic than the simple Windows software firewall or the basic NAT firewalls found in routers. These devices implement techniques such as stateful packet inspection, deep packet inspection, and content filtering; and may include built-in antivirus and anti-malware protection.

Hardware Firewalls

Cisco PIX is a dedicated hardware firewall appliance; the Cisco Adaptive Security Appliance (ASA) is a firewall and anti-malware security appliance that provides unified threat management and protection the PIX does not. Other Cisco devices and systems include routers, switches, storage networking, wireless and the software and hardware for PIX Firewall Manager (PFM), PIX Device Manager (PDM) and Adaptive Security Device Manager (ASDM).

Cisco

SonicWall

Networking is the process of connecting computing devices, peripherals and terminals together through a system that uses wiring, cabling or radio waves that enable their users to communicate, share information and interact over distances. Often associated are issues regarding operating systems, hardware and equipment, cloud and virtual networking, protocols, architecture, storage and management.

Networking

Security is the protection of information systems from theft or damage to the hardware, the software, and the information on them, as well as from disruption or misdirection of the services they provide. The main goal of security is protecting assets, and an asset is anything of value and worthy of protection.  Information Security is a discipline of protecting information assets from threats through safeguards to achieve the objectives of confidentiality, integrity, and availability or CIA for short. On the other hand, disclosure, alteration, and disruption (DAD) compromise the security objectives.