Configure a VLAN
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Next-Generation Firewall

Configure a VLAN

Table of Contents

Configure a VLAN

Configure a Layer 2 interfaces with a VLAN for switching and traffic separation.
Contact your account team to enable Cloud Management for NGFWs using Strata Cloud Manager.
Where Can I Use This?
What Do I Need?
  • NGFW (Managed by Strata Cloud Manager)
  • VM-Series, funded with Software NGFW Credits
  • AIOps for NGFW Premium license (use the Strata Cloud Manager app)
When your organization wants to divide a LAN into separate virtual LANs (VLANs) to keep traffic and policy rules for different departments separate, you can logically group Layer 2 hosts into VLANs and thus divide a Layer 2 network segment into broadcast domains. For example, you can create VLANs for the Finance and Engineering departments.
The firewall acts as a switch to forward a frame with an Ethernet header containing a VLAN ID, and the destination interface must have a subinterface with that VLAN ID in order to receive that frame and forward it to the host. You configure a Layer 2 interface on the firewall and configure one or more logical subinterfaces for the interface, each with a VLAN tag (ID).
  1. Log in to
    Strata Cloud Manager
    .
  2. VLANs support Layer 2 interfaces only.
  3. Configure a Subinterface for the Layer 2 interface.
    Be sure to set the VLAN
    Tag
    for the subinterface.
  4. Select
    Manage
    Configuration
    NGFW and Prisma Access
    Device Settings
    Interfaces
    VLAN
    and select the Configuration Scope where you want to create the VLAN.
    Select a firewall from your
    Folders
    or select
    Snippets
    to configure the VLAN in a snippet.
    If you select a folder or select a snippet, you create a VLAN variable that must be assigned at the device level.
  5. Enter the
    Interface Name
    .
    By default, all VLANs are prefixed with
    vlan
    .
  6. (
    Optional
    ) Enter a
    Description
    .
  7. (
    Folders and Snippets only; Optional
    ) Assign the VLAN to a
    Logical Router
    .
    See Configure a Logical Router for more information.
  8. (
    Folders and Snippets only; Optional
    ) Assign the interface to a
    Zone
    .
    Create New
    to create a new zone. See Zone Protection and DoS Protection for more information.
  9. Add
    the Layer 2
    Ethernet Interfaces
    you created in the previous step.
  10. Configure the VLAN IP settings.
    1. Select the VLAN IP
      Type.
    • Static
      IPv4 Address.
      Add
      the IPv4 IP addresses for the interfaces in the VLAN.
    • Activate the
      DHCP Client
      on the VLAN.
      See Configure an Interface as a DHCP Client for more information on configuring the VLAN as a DHCP client.
  11. Save
    .
  12. Push Config
    to push your configuration changes.

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