Digi Connect IT 4

Routing Virtual Router Redundancy Protocol (VRRP)
Digi Connect IT® 4 User Guide
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b. For backup devices, set the default gateway to the IP address of the VRRP interface on the
master device. For example:
(config)> network interface lan ipv4 gateway 192.168.3.1
(config)>
c. For backup devices, enable and configure SureLink on the VRRP interface.
i. Determine the VRRP interface. Generally, this should be a LAN interface; VRRP+ will
then monitor the LANusing SureLink to determine if the interface has network
connectivity and promote a backup to master if SureLink fails.
(config)> show network vrrp VRRP_test interface
/network/interface/lan
(config)>
ii. Enable SureLink on the interface:
(config)> network interface lan ipv4 surelink enable true
(config)>
iii. Set the amount of time to wait between connectivity tests:
(config)> network interface lan ipv4 surelink interval value
(config)>
where value is any number of weeks, days, hours, minutes, or seconds, and takes the
format number{w|d|h|m|s}.
For example, to set interval to ten minutes, enter 5s:
(config)> network interface lan ipv4 surelink interval 5s
(config)>
iv. Create a SureLink test target:
(config)> add network interface lan ipv4 surelink target end
(config network interface lan ipv4 surelink target 0)>
v. Configure the type of test for the test target:
(config network interface lan ipv4 surelink target 0)> test value
(config network interface lan ipv4 surelink target 0)>
where value is one of:
n ping: Tests connectivity by sending an ICMP echo request to a specified
hostname or IP address.
l Specify the hostname or IP address:
(config network interface lan ipv4 surelink target 0)>
ping_host host
(config network interface lan ipv4 surelink target 0)>