30 virtual router redundancy (vrrp), Chapter 30, Virtual router redundancy (vrrp) – Westermo RedFox Series User Manual
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Westermo OS Management Guide
Version 4.17.0-0
Chapter 30
Virtual Router Redundancy
(VRRP)
This chapter describes WeOS support for the Virtual Router Redundancy Protocol
version 2 (VRRPv2)[
VRRP is a standard protocol to enable redundancy between a host and its router,
in case the router goes down. VRRP can also be used for load balancing purposes.
VRRP provides router redundancy for regular (unicast) IP traffic by letting multiple
routers share a virtual IP and MAC address. If the (master) router goes down, a
backup router will automatically take over.
WeOS provides an optional feature, where the VRRP state (master or backup)
is used to enable/disable IP multicast routing of incoming IP multicast packets.
With this option enabled, the backup router will prevent the routing of (static) IP
multicast routes in addition to IP unicast routing. See
for information
on support for static IP multicast routing in WeOS.
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