NetComm Wireless
VRRP
Feature Spotlight
What is VRRP?
Most of us configure a static route to a single router on PCs
because it is easy, but what if that router goes down? The PC
client won’t be able to reach other networks, like the internet.
VRRP (Virtual Router Redundancy Protocol) is a nonproprietary redundancy protocol that lets you configure a
group of routers to act as the default gateway for the
purposes of backup and redundancy.
Using this method, we can point the PC clients to the IP
address of the VRRP virtual router so that if one of the master
routers in the group goes down, another router takes over as
the master and maintains routing functionality for the client.
What is VRRP? (continued)
In VRRP, there are two types of routers; master and backup
routers.
You can configure up to 255 virtual routers in a group.
Master routers have a priority of 255 and backup routers
have a priority of 1-254.
A virtual router must use 00-00-5E-00-01-XX as its MAC
address. The last byte of the MAC address (XX) is the Virtual
Router ID (VRID) and is different for each virtual router in the
group.
This address is used by only one physical router at a time
and is the only way that other physical routers can indentify
the master router within a virtual router.
What can you do with VRRP?
The diagram below illustrates how VRRP works:
PPPoE username and password
Configuring VRRP
Configuring the VRRP
Configuring the backup router
Configuring the VRRP
Configuring the master router
Further information
For more information, please visit www.netcommwireless.com and navigate to your product’s support page.