Configuration
4.2 VRRP Configuration
4.2 VRRP Configuration
VRRP via IPv6 (VRRPv3) is not supported.
Select the
VRRP
menu item to enter the VRRP configuration. VRRP protocol (Virtual Router
Redundancy Protocol) allows you to transfer packet routing from the main router to a backup
router in case the main router fails. (This can be used to provide a wireless cellular backup to
a primary wired router in critical applications.) If the
Enable VRRP
is checked, you may set the
following parameters.
Item
Description
Virtual Server IP Address
This parameter sets the virtual server IP address. This ad-
dress must be the same for both the primary and backup
routers. Devices on the LAN will use this address as their
default gateway IP address.
Virtual Server ID
This parameter distinguishes one virtual router on the net-
work from another. The main and backup routers must use
the same value for this parameter.
Host Priority
The active router with highest priority set by the parameter
Host Priority, is the main router. According to RFC 2338, the
main router should have the highest possible priority – 255.
The backup router(s) have a priority in the range 1 – 254
(default value is 100). A priority value of 0 is not allowed.
Table 17: VRRP configuration
You may set the
Check connection
flag in the second part of the window to enable automatic
test messages for the cellular network. In some cases, the mobile WAN connection could still
be active but the router will not be able to send data over the cellular network. This feature
is used to verify that data can be sent over the PPP connection and supplements the normal
VRRP message handling. The currently active router (main/backup) will send test messages to
the defined
Ping IP Address
at periodic time intervals (
Ping Interval
) and wait for a reply (
Ping
Timeout
). If the router does not receive a response to the Ping command, it will retry up to the
number of times specified by the
Ping Probes
parameter. After that time, it will switch itself to a
backup router until the PPP connection is restored.
Item
Description
Ping IP Address
Destinations IP address for the Ping commands. IP Address can
not be specified as a domain name.
Ping Interval
Interval in seconds between the outgoing Pings.
Ping Timeout
Time in seconds to wait for a response to the Ping.
Ping Probes
Maximum number of failed ping requests.
Table 18: Check connection
You may use the DNS server of the mobile carrier as the destination IP address for the test
messages (Pings).
The
Enable traffic monitoring
option can be used to reduce the number of messages that
are sent to test the PPP connection. When this parameter is set, the router will monitor the
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UM Configuration OWL LTE M12
Rel. 06.1.09 - 07/2019
Summary of Contents for Hirschmann OWL LTE M12
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