D-Link UWS User Manual
Virtual Router Redundancy Protocol (VRRP)
The Virtual Router Redundancy protocol is designed to handle default router failures by providing a scheme
to dynamically elect a backup router. The driving force was to minimize "black hole" periods due to the failure
of the default gateway router during which all traffic directed towards it is lost until the failure is detected.
Though static configuration of default routes is popular, such an approach is susceptible to a single point of
failure when the default router fails. VRRP advocates the concept of a "virtual router" associated with one or
more IP Addresses that serve as default gateways. In the event that the VRRP Router controlling these IP
Addresses (formally known as the Master) fails, the group of IP Addresses and the default forwarding role is
taken over by a Backup VRRP Router.
VRRP Configuration
Use the VRRP Configuration page to enable or disable the administrative status of a virtual router.
To display the page, click LAN > L3 Features > VRRP > VRRP Configuration in the navigation tree.
Field
Admin Mode
• If you change the administrative mode, click Submit to apply the changes to the system.
D-Link
Oct. 2015
Figure 210: VRRP Configuration
Table 191: VRRP Configuration
Description
This sets the administrative status of VRRP in the router to active or inactive.
Select Enable or Disable from the dropdown menu. The default is Disable.
Virtual Router Redundancy Protocol (VRRP)
Unified Wired and Wireless Access System
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