I leave details to our HA expert but it seems your setup requires an active load-balancer: - the path between clients and the first server is broken so this server does not receive queries or clients do not receive responses - the path between the two servers work so for the second server the first server is ok - the path between clients and the second server works so the second server believes queries from first server clients are served by the first server so it does not serve them - the second server has no way to detect the problem as it does not follow responses
I suggest to use an active load-balancer i.e. a box between clients and servers which splits and monitors exchanges: not only it should solve the problem but it will avoid extra traffic. With other words you are outside what the Kea load-balancing can support... Thanks Francis Dupont <fdup...@isc.org> -- ISC funds the development of this software with paid support subscriptions. Contact us at https://www.isc.org/contact/ for more information. To unsubscribe visit https://lists.isc.org/mailman/listinfo/kea-users. Kea-users mailing list Kea-users@lists.isc.org https://lists.isc.org/mailman/listinfo/kea-users