Yes, MikroTik RouterOS supports Virtual Router Redundancy Protocol (VRRP), which is a standard router redundancy protocol used to increase the availability of the default gateway configured on devices on a LAN.

VRRP is crucial for environments where downtime must be minimized and service continuity is essential.

How VRRP Works in MikroTik

VRRP allows multiple routers to participate in a VRRP group, where one router acts as the primary router (Master), and one or more routers act as backups.

The routers in the VRRP group have a shared virtual IP address, which is the address that devices on the network use as their default gateway.

If the primary router fails, one of the backup routers automatically assumes the role of primary router, taking over the virtual IP address and continuing service with no noticeable interruption to end users.

VRRP setup in MikroTik

Here is a basic example of how to configure VRRP on MikroTik RouterOS:

1. Access to RouterOS: Make sure you are connected to your MikroTik device via WinBox, WebFig, or SSH.
2. Configure VRRP Interfaces:
   • Go to Interfaces and select VRRP.
   • Click the add button (+) to create a new VRRP interface.
   • Assigns a name to the VRRP interface.
   • Select the physical interface on which the VRRP will operate.
   • Sets the virtual IP address that will be shared between the routers in the VRRP group.
3. Set priorities:
   • Defines the priority of the router in the VRRP group. The router with the highest priority will be the Master. In case of a tie, the router with the highest IP address takes precedence.
4. Set Timers:
   • Adjusts the advertisement timers to determine how often the Master sends VRRP advertisements to other routers in the group.
5. Preempt Mode:
   • Enable preemptive mode if you want the router with the highest priority to always assume the Master role when available.
6. Monitoring and Maintenance:
   • Monitors VRRP logs and statistics to ensure the group is functioning correctly.

Security Considerations

Be sure to configure authentication in your VRRP configurations to prevent unauthorized routers from joining the VRRP group and possibly maliciously redirecting traffic.

Implementing VRRP on a network with MikroTik devices is an effective way to ensure high availability and avoid single points of failure, significantly improving resilience and business continuity in your network infrastructure.