Component: vrrp

7.21 Stable 2026-Jan-12 (3 weeks ago)

• do not show "ttl not 255" warning when received VRRP VRID does not match with configured VRID;
• fixed gratuitous ARP being sent after VRRP is disabled (fixes packet forwarding on HW offloaded bridge after VRRP is disabled);

7.20 Stable 2025-Sep-29 (4 months ago)

• added "connection-tracking-port" and "connection-tracking-mode" settings for "sync-connection-tracking";
• added proxy-arp support;
• fixed invalid TCP connection state after failover with enabled sync-connection-tracking;
• fixed sync-connection-tracking issue when parent interface is disabled/enabled;
• improved responsiveness when router has many IP addresses depending on VRRP state;
• improved stability when removing VRRP interface with enabled sync-connection-tracking;
• make MTU property read-only;

7.19 Stable 2025-May-22 (8 months ago)

• fixed detection of connection tracking after reboot (introduced in v7.17);

7.10 Stable 2023-Jun-15 (2 years ago)

• added warning if "sync-connection-tracking=yes" while the global connection tracking is inactive;
• added warning if the VRRP group is misconfigured;
• added warning if VRRP or its interface does not have an IP address;
• do not start connection synchronization if the global connection tracking is inactive;
• fixed issue where disabled VRRP interface is affecting group;
• fixed VRRP interface state on physical cable disconnection;
• improved system stability on changing "group-authority" or "sync-connection-tracking";
• renamed "group-master" to "group-authority" to avoid confusion with VRRP master;
• send VRRP announcements only by "group-authority";

7.9 Stable 2023-May-02 (2 years ago)

• added "self" value for "group-master" setting;

7.7 Stable 2023-Jan-12 (3 years ago)

• always use slave interface MTU;
• improved interface stability on configuration changes;

7.6 Stable 2022-Oct-17 (3 years ago)

• fixed connection tracking synchronization on MMIPS and MIPSBE devices;

7.5 Stable 2022-Aug-30 (3 years ago)

• added "sync-connection-tracking" compatibility with preemption-mode;
• fixed high CPU usage when "sync-connection-tracking=yes" and the backup router goes offline;
• fixed HW offloaded bridge MAC address learning when changing from VRRP master to backup;
• fixed initial connection tracking synchronization, a backup router now always receives all existing connections;
• improved connection tracking synchronization protocol (CTSYNC), the new protocol is incompatible with previous RouterOS versions with "sync-connection-tracking=yes";

7.3 Stable 2022-Jun-06 (3 years ago)

• fixed learning of bridged local MAC addreses;

6.46.8 Long-term 2020-Oct-29 (5 years ago)

• made "password" parameter sensitive;

6.47.6 Stable 2020-Oct-21 (5 years ago)

• made "password" parameter sensitive;

6.44 Stable 2019-Feb-25 (6 years ago)

• made "password" parameter sensitive;

6.43 Stable 2018-Sep-06 (7 years ago)

• improved reliability on VRRP interface configured as a bridge port when "use-ip-firewall" is enabled;

6.42.7 Stable 2018-Aug-17 (7 years ago)

• fixed VRRP packet processing on VirtualBox and VMWare hypervisors;

6.37.4 Long-term 2017-Jan-13 (9 years ago)

• do not show unrelated log warning messages about version mismatch;

6.38 Stable 2016-Dec-30 (9 years ago)

• do not show unrelated log warning messages about version mismatch;

6.36.1 Stable 2016-Aug-05 (9 years ago)

• fixed transition to backup state when ipv6 mode and equal priorities are used;

6.34.6 Long-term 2016-Jun-06 (9 years ago)

• fixed missing vrrp interfaces after upgrade (introduced in 6.34.5).

6.35.2 Stable 2016-May-02 (9 years ago)

• fixed missing vrrp interfaces after upgrade (introduced in 6.35.1).

6.32.4 Long-term 2016-Feb-09 (9 years ago)

• allow VRRP to work behind firewall and NAT rules;
• do not warn about version mismatch if VRID does not match;
• fix arp=reply-only;
• fix enabling disabled vrrp interface when vrrp program has exited;
• fixed on-backup script;
• make sure that VRRP gets state on bootup;

6.33.2 Stable 2015-Nov-27 (10 years ago)

• fix arp=reply-only;
• do not warn about version mismatch if VRID does not match;
• allow VRRP to work behind firewall and NAT rules;
• fixed on-backup script;

6.33.1 Stable 2015-Nov-17 (10 years ago)

• fix enabling disabled vrrp interface when vrrp program has exited;

6.29 Stable 2015-May-27 (10 years ago)

• do not reset interface when no interesting config changes;

6.2 Stable 2013-Aug-02 (12 years ago)

• allow more than one vrrp on interface;

6.1 Stable 2013-Jun-12 (12 years ago)

• fixed ah authentication;