• High Availability
  • About High Availability
    • High Availability Terminology
    • High Availability Modes
    • High Availability Encryption
    • Crash Detection
    • Virtual MAC Address
    • Dynamic WAN Interfaces with PPPoE HA
    • Stateful Synchronization with DHCP
    • Stateful Synchronization with DNS Proxy
    • About HA Monitoring
  • Understanding High Availability
  • Understanding SonicWall High Availability Operation Modes
  • About Active/Standby HA
    • Benefits of Active/Standby HA
    • Working of Active/Standby HA
  • About Stateful Synchronization
    • Benefits of Stateful Synchronization
    • How Does Stateful Synchronization Work?
    • Example of Stateful Synchronization
  • Active/Standby Prerequisites
    • Supported Platforms and Licensing for HA
    • Physically Connecting Your Security Appliances
    • Connecting the Active/Active DPI Interfaces for Active/Active DPI
  • Maintenance
    • Removing an HA Association
    • Replacing a SonicWall Security Appliance
      • Replacing an HA Primary Unit
      • Replacing an HA Secondary Unit
• High Availability Status
  • Active/Standby High Availability Status
    • High Availability Status
    • High Availability Config
    • High Availability Licenses
• Configuring High Availability
  • Configuration of HA Active/Standby
  • Configuring Active/Standby High Availability Settings
  • Configuring HA with Dynamic WAN Interfaces
  • Configuring Network DHCP and Interface Settings
    • Disabling the SonicOS DHCP Server
    • Configuring Virtual IP Addresses
    • Configuring Redundant Ports
• Fine Tuning High Availability
  • Advanced Settings
  • Configuring Advanced High Availability Settings
• Monitoring High Availability
  • Configuring Active/Standby High Availability Monitoring
  • IPv6 High Availability Monitoring
  • IPv6 HA Monitoring Considerations
• Failure Monitoring
• SonicWall Support
  • About This Document

Dynamic WAN Interfaces with PPPoE HA

Dynamic WAN interfaces with PPPoE HA is not supported on the SuperMassive 9800. Only the DHCP Server dynamic WAN mode is supported.

PPPoE can be enabled on interfaces in non-stateful mode, HA Active/Standby mode. PPPoE HA provides HA where a Secondary Security Appliance assumes connection to the PPPoE server when the Active Security Appliance fails.

One WAN interface must be configured as PPPoE; see Configuring a WAN Interface section in the SonicOS 7.0 Firewall Network document available at https://www.sonicwall.com/support/technical-documentation/.

After the Active unit connects to the PPPoE server, the Security Appliance synchronizes the PPPoE session ID and server name to the Secondary unit.

When the Active Security Appliance fails, it terminates the PPPoE HA connection on the client side by timing out. The Secondary Security Appliance connects to the PPPoE server, terminates the original connection on the server side, and starts a new PPPoE connection. All pre-existing network connections are rebuilt, the PPPoE sessions are re-established, and the PPP process is renegotiated.