Related to T265607 and T244153#6403429:
For example:
https://netbox.wikimedia.org/dcim/devices/2552/
Have a SLAAC IP as primary v6 IP (private) 2620:0:860:101:4ed9:8fff:fea0:222b/64
Running sudo cumin * "ip addr | grep ff:fe | grep -v fe80" only show LVS (expected) and Ganeti (not expected) hosts with those SLAAC IPs.
Not sure if if the fix applied to T265607 covers the private vlan as well. If so feel free to merge. Netbox will have to be updated accordingly once the IP is gone from the host.
Note that disabling RA might cause v6 to lose its default GW.