D-Link DWC-1000 [141/368] Auto rollover using option port

D-Link DWC-1000 User Manual 141

Section 5 - Advanced Network Conguration

Auto-Rollover using Option Port

InthismodeoneofyourOptionportsisassignedasthe primaryInternetlinkforallInternettracandthe

secondary Option port is used for redundancy in case the primary link goes down for any reason. Both Option

ports(primaryandsecondary)mustbeconguredtoconnecttotherespectiveISP’sbeforeenablingthisfeature.

ThesecondaryOption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tracwillberolled

over to the backup port. When congured in Auto-Failover mode, the link status of the primary Option port is

checked at regular intervals as dened by the failure detection settings.

1. Click Network > Internet > Option Mode.

Field Description

Option Mode Select Auto-Rollover Using Option Port from the drop-down menu.

Use Primary Port Select which Option port is the primary.

Use Secondary Option

Port

Select which port to use if the primary port fails.

DNS Lookup Method

• Option DNS Servers: DNS Lookup of the DNS Servers of the primary link is used to detect primary

Option connectivity.

• DNS Servers: DNS Lookup of the custom DNS Servers can be specied 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 controller how often it should run the above congured

failure detection method.

• Failover after: This sets the number of retries after which failover is initiated.

Option 1/Option 2 EntertheDNSserverorIPaddresstoping.

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controllerwillenablethefailoverprocess.

2. Complete the elds from the table below and click Save.