D-Link DSR-1000AC User Manual - Page 55

Section 5 - Connect to the Internet Auto-Rollover using WAN IP In this mode one of your WAN ports is assigned as the primary internet link for all internet traffic and the secondary WAN port is used for redundancy in case the primary link goes down for any reason. Both WAN ports (primary and secondary) must be configured to connect to the respective ISP's before enabling this feature. The secondary WAN port will remain unconnected until a failure is detected on the primary link (either port can be assigned as the primary). In the event of a failure on the primary port, all internet traffic will be rolled over to the backup port. When configured in Auto-Failover mode, the link status of the primary WAN port is checked at regular intervals as defined by the failure detection settings. 1. Click Network > Internet > WAN Mode. 2. Complete the fields from the table below and click Save. Field Description WAN Mode Select Auto-Rollover Using WAN IP from the drop-down menu. Use Primary WAN Port Select which WAN port is the primary. Use Secondary WAN Port Select which port to use if the primary port fails. WAN Health Check • DNS lookup using WAN DNS Servers: DNS Lookup of the DNS Servers of the primary link is used to detect primary WAN connectivity. • DNS lookup using DNS Servers: DNS Lookup of the custom DNS Servers can be specified to check the connectivity of the primary link. • Ping these IP addresses: These IP's will be pinged at regular intervals to check the connectivity of the primary link. • Retry Interval is: The number tells the router how often it should run the above configured failure detection method. • Failover after: This sets the number of retries after which failover is initiated. WAN1/WAN2/WAN3 Enter the DNS server or IP address to ping. Note: WAN3 is supported only in DSR-1000AC. Retry Interval Enter the time in seconds to initiate the WAN health check. Default is every 30 seconds. Failover After Enter the number of failures before the router will enable the failover process. Note: The DSR series routers support 3G USB Modem as a failover link when the internet access is lost. D-Link DSR-Series User Manual 42