Configurable Elements Of Vrrp - Cisco 350 Series Administration Manual

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Configurable Elements of VRRP

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For virtual router 2, rB is the owner of IP address 192.168.2.2 and virtual router master, and rA
is the virtual router backup to rB. Clients 3 and 4 are configured with the default gateway IP
address of 192.168.2.2.
A virtual router must be assigned an unique virtual router identifier (VRID) among all the
virtual routers on the same LAN. All VRRP routers supporting the same virtual router must be
configured with all the information relating to the virtual router including its VRID. Virtual
routers should be enabled on the device only when IP routing is also enabled on the device.
You can configure a VRRP router to participate in one or more virtual routers either by using
CLI commands, or through the web GUI, as described in the
To configure a virtual router, you configure its information, such as the virtual router ID and
its IP addresses, on every VRRP routers that support the virtual router. The following elements
can be configured and customized.
Virtual Router Identification
It must be assigned an identifier (VRID) and may be assigned a description. The sections
below describe the various attributes of the virtual router.
VRRP supports up to 255 virtual routers (VRRP groups).
VRRP Versions
The device supports the following VRRP version types:
• IPv4 VRRPv3 based on RFC5798. VRRPv3 messages are sent.
• IPv4 VRRPv3 and VRRPv2 based on RFC5798. VRRPv3 and VRRP v2 messages are
sent.
• IPv4 VRRPv2 based on RC3768. VRRPv2 messages are sent.
Configuring the VRRP version is per virtual router. The default is VRRPv2.
The following cases might occur when configuring a virtual router:
• All the existing VRRP routers of the virtual router operate in VRRPv3. In this case,
configure your new VRRP router to operate in VRRPv3.
Cisco 350, 350X and 550X Series Managed Switches, Firmware Release 2.4, ver 0.4
IP Configuration: VRRP
Configurable Elements of VRRP
Configuring VRRP section.