Editing a VRRP instance

You can edit a VRRP instance in a CPE template or on a device. When you edit a VRRP instance in a CPE template, the instance is automatically modified on all devices that are using the template. You cannot edit a VRRP instance that is inherited from a template on a CPE device.

To edit a VRRP instance:

1. Edit a VRRP instance in one of the following ways:
   • If you want to edit a VRRP instance in a CPE template, go to the SD-WAN → CPE templates menu section, click the template and in the displayed settings area, select the VRRP → VRRP instances tab.
   • If you want to edit a VRRP instance on a CPE device, go to the SD-WAN → CPE menu section, click the device, and in the displayed settings area, select the VRRP → VRRP instances tab and in the upper part of the settings area, select the Override check box.

   A table of VRPP instances is displayed.

2. Click Edit next to the VRRP instance that you want to edit.
3. This opens a window; in that window, in the Name field, enter the name of the VRRP instance. Maximum length: 16 characters.
4. In the VRID field, enter the ID of the virtual router. You must specify the same ID when creating VRRP instances for all network interfaces that you want to combine into a virtual router. Range of values: 1 to 255.
5. In the Interface drop-down list, select a previously created network interface that you want to add to the virtual router.
6. In the VIP field, enter the virtual IP address that you want to assign to this network interface. You must assign the same virtual IP address to all network interfaces that you want to combine into a virtual router.
7. In the State drop-down list, select the role of the network interface:
   • Backup is the backup network interface. Default value.
   • Master is the primary network interface.
8. In the Priority field, enter the priority of the network interface. The greater the value, the higher the priority. When the primary network interface fails, it is replaced by the backup network interface with the highest priority. If, when selecting the new primary network interface, all backup network interfaces have the same priority, the new primary network interface is selected at random. Range of values: 1 to 1000. The default setting is 100.
9. In the Advertise interval (sec.) field, enter the time interval in seconds for sending control packets from a network interface to other network interfaces. Range of values: 1 to 60. The default setting is 5.
10. If you do not want to change the role of the backup network interface that has become the primary router, even if the old primary network interface becomes operational again, select the Nopreempt check box. This check box is cleared by default.
11. If you want to configure unicast sending of control packets by the network interface:
    1. Select the Unicast check box. This check box is cleared by default.
    2. In the Main VRPP router IP field, enter the IP address of the network interface from which you want to send control packets.
    3. In the Backup VRRP router IP field, enter the IP address of the network interface to which you want to send control packets.

    By default, the network interface uses multicast to send control packets.

12. If you want to use a password for authentication of control packets on the network interface:
    1. Select the Authentication check box. This check box is cleared by default.
    2. Enter a password in the field that is displayed. Maximum length of the password: 16 characters. You must specify the same password for all network interfaces that you want to combine into a virtual router. To see the entered password, you can click the show icon .
13. Click Save.

    The VRRP instance is modified and updated in the table.

14. In the upper part of the settings area, click Save to save the settings of the CPE template or device.