BeamOS – VRRP
Summary
The Virtual Router Redundancy Protocol (VRRP) is a computer networking protocol used for automatic default gateway selection for clients on a LAN network in case the main router (Master) becomes unavailable. Another VRRP router (Backup) then assumes the role of Master; thus backing up the connection.
This page is an overview of the VRRP section of BEAM routers.
VRRP configuration
Field Name | Value | Description |
|---|---|---|
Enable | yes | no; Default: no | Turns VRRP on or off. |
IP address | integer [1..255]; default: 1 | The Virtual Router Identifier (VRID) is a field in the VRRP packet IP header used to identify the virtual router in the VRRP cluster. Routers with identical IDs will be grouped in the same VRRP cluster. |
Virtual ID | integer [1..255]; default: 1 | The Virtual Router Identifier (VRID) is a field in the VRRP packet IP header used to identify the virtual router in the VRRP cluster. Routers with identical IDs will be grouped in the same VRRP cluster. |
Priority | integer [1..255]; default: 100 | VRRP priority of the virtual router. Higher values equal higher priority. The router with the highest priority is considered to be the Master router while other routers are Backup routers.
sends periodic VRRP Advertisement messages
Master router – the first hop router in the VRRP cluster (i.e., the router that provides connectivity to LAN devices by default).
Backup router – assumes the role of Master router in case it becomes unavailable. If there multiple Backup routers in the VRRP cluster, the one with the highest priority will assume the role of Master. |
Advertisment Interval | integer [1..255]; default: 1 | Time interval in seconds between advertisements |
Check Internet connection
The Check Internet connection section is used to set the parameters that define how the router will determine whether the Internet connection is still available or not. This is done by periodically sending ICMP packets to a defined host and awaiting responses. If no response is received after a defined period of time, the connection is determined to be down, and thus the role of Master is assumed by another router in the network.
Refer to the figure and table below for information on the fields contained in the Check Internet connection section.
Field Name | Value | Description |
|---|---|---|
Enable | yes | no; Default: no | Turns Internet connection checking on or off. |
Ping IP address | ip | host; default: none | Virtual IP address for the router LAN’s VRRP cluster. |
Ping interval | integer [1..255]; default: 1 | IP address or hostname to which the router will send ICMP packets. This is used to determine whether the Internet connection is still available or not. Therefore, it is recommended that you enter the address of remote host that is usually available (for example, 8.8.8.8). |
Ping timeout (sec) | integer [1..9999]; default: 1 | The maximum amount of time the router will wait for a response to a ping request. If it does not receive a response for the amount of time defined in this field, the ping request will be considered to have failed. |
Ping packet size | integer [0..1000]; default: none | The size (in bytes) of sent ICMP packets. |
Ping retry count | nteger [1..9999]; default: none | How many times the router will retry sending ping requests before determining that the Internet connection has failed. |
