Technical Tip: Creating a second DDNS

Description

This article describes how to create a second DDNS in FortiGate for a secondary ISP.

Scope

FortiGate.

Solution

If WAN interfaces are configured with two dynamic addresses, set up the DDNS using one WAN interface in the FortiGate.
If there is a necessity to create a DDNS for WAN2, use the following command.

config sys ddns
    edit 2
        set monitor-interface wan2
        set ddns-server FortiGuardDDNS
        set ddns-domain xxxxx.fortiddns.com
end

Related articles:

Technical Tip: Setting up FortiGuard DDNS Redundancy for Same Domain Name 

Technical Tip: DDNS update with public IP on internal firewalls