Vrrp - Sierra Wireless AirLink RV50 Series User Manual

Field
DHCP Server Mode
Starting IP
Ending IP
Backup WAN connection
Connected device
Rev 1 Dec. 17
Description
Choose whether or not the AirLink gateway acts as a DHCP server
Options are:
Enable—AirLink gateway acts as the DHCP server
•
Disable (default)
•
VLAN interface DHCP pool starting IP address
VLAN interface DHCP pool ending IP address

VRRP

VRRP (Virtual Router Redundancy Protocol) enables you to configure a backup
WAN connection to be used if the primary connection fails. You can configure
VRRP on the AirLink gateway's Ethernet port or for VLANs.
You configure a VRRP Master and VRRP Backup device(s) and set their
priorities. The device with the highest priority (normally the VRRP Master)
becomes the primary route for the data connection.
The VRRP Master and Backups share a common virtual IP.
For information on configuring VLANs, see
One common scenario is to use a 3rd party router for the primary connection and
the AirLink gateway, either with or without VLANs, for the backup connection.
WAN
Primary WAN connection
AirLink gateway
(VRRP Backup)
Connected device
Figure 5-18: VRRP Network Configuration without VLANs
Router (VRRP Master)
Switch
Connected device
131
LAN Configuration
VLAN on page 129.
Connected device
Connected device Connected device
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