PPPoE Client Support on a Subinterface

Firewall supports a PPPoE IPv4 client on a subinterface to connect to your ISP using an 802.1Q VLAN tag.
The firewall supports a PPPoE (Point-to-Point Protocol over Ethernet) IPv4 client on a Layer 3 subinterface for when your ISP indicates that PPPoE over 802.1Q VLAN is the way in which to connect to its internet services. The firewall establishes a PPPoE connection to the ISP using an 802.1Q VLAN tag. The PPPoE client that you configure on the subinterface learns its IPv4 address from the ISP, along with other information such as the IP address of the server, DNS information, and MTU.
You can configure a PPPOE client on either a physical interface or a subinterface, but not both at the same time. Only one PPPoE subinterface is supported on a physical interface. Before you begin configuring a PPPoE client, ask your ISP what VLAN tag to use for your connection. You will enter that tag when you configure the subinterface number and Tag. The following task assumes you have already configured a Layer 3 Ethernet interface on the firewall with a security zone.
  1. Configure a subinterface as a PPPoE client (termination point).
    1. Select
      and highlight a Layer 3 Ethernet interface.
    2. Add Subinterface
    3. To the right of the
      Interface Name
      and dot, enter the subinterface number, which is the VLAN tag number that your ISP provided.
    4. Enter the
      , which is the VLAN tag number that your ISP provided. The actual VLAN tag ID is read from this Tag field.
    5. Select
    6. Select the
      of address as
    7. Select
      the subinterface.
    8. Enter the
      for the authentication you will choose.
  2. Configure additional characteristics of the PPPoE subinterface, such as the type of authentication, requesting a specific IPv4 address, and creating a default route that points to the default gateway that the PPPoE server provides.
  3. Click
  4. Commit
    the changes.
  5. View information about the PPPoE client.

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