Anyone else seeing this? It has been happening on one of our routers (RB600A) for at least a year. With increasing deployment of IPv6 on our network it is becoming more and more irritating. Upgraded the unit to 5.25 today, and the problem is still present.
1. Configure several static IPv6 routes (route each of several IPv6 subnets to specific hosts on a local subnet).
2. Observe traffic flows as expected, often for weeks and months.
3. Make some random configuration change on the router (e.g. change shaping setup, or sometimes it seems to just happen spontaneously).
4. Observe that traffic is being dropped for one of the routed IPv6 subnets.
Workaround : reboot the router, or (discovered by chance), if the "bad route" is disabled then re-enabled, it will magically start working again.
Packets seem to get dropped, rather than rejected, when the dropped route syndrome is active.
It feels like a bug where the mapping of the router's config state down to Linux ip/route commands is broken under some conditions (I have no idea if ROS actually works that way, btw). Flipping the route off and on forces explicit reinstatement of the route in the routing table underneath.
Nothing interesting in the log.