Networking
Configuring VRRP
Cisco ISA500 Series Integrated Security Appliances Administration Guide
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Configuring VRRP
Virtual Router Redundancy Protocol (VRRP) is a redundancy protocol for LAN
access device. VRRP configures a groups of routers (include a master router and
several backup routers) as a virtual router.
STEP 1
Click
Networking > VRRP
.
The VRRP window opens.
STEP 2
Check the box next to
Enable Virtual Router Redundancy Protocol (VRRP)
to
enable VRRP, or uncheck this box to disable it.
STEP 3
If you enable VRRP, enter the following information:
•
Interface:
The default port of the master virtual router (your security
appliance).
•
Source IP:
The source IP address of the master virtual router.
NOTE:
If a VRRP router owns the IP address of the virtual router and the IP
address of the physical interface, this router will function as a master virtual
router.
•
VRID:
The ID of the master virtual router. A virtual router has a unique ID that
will be represented as the unique virtual MAC address. Enter a value from 1
to 255.
•
Priority:
The priority of the master virtual router. Priority determines the role
that each VRRP router plays and what happens if the master virtual router
fails. Enter a value from 1 to 254.
•
Advertisement Interval:
Specify the interval in seconds between
successive advertisements by the master virtual router in a VRRP group. By
default, the advertisements are sent every one second. The advertisements
being sent by the master virtual router communicate the state and priority of
the current master virtual router.
NOTE:
All routers in a VRRP group must use the same advertisement interval
value. If the interval values are not same, the routers in the VRRP group will
not communicate with each other and any mis-configured router will change
its state to master.
