Comment 10 for bug 1732002

I'd like to +1 what cyphermox said, the expected behavior on Ubuntu is that if you do receive a RA, you let the kernel configure it.

That's how Ubuntu has been ever since IPv6 support was enabled and I personally have about 200 systems that very much rely on this (no specific IPv6 configuration, just RA based config).

If you turn off IPv6 on your host, this may or may not affect your containers, depending on how you've turned it off (globally at kernel level, through the default policy or through the all policy).