Hi,
my containers still all have IPv6 connectivity.
I added the file /etc/sysctl.d/ipv6.conf to all my Debian/Ubuntu containers with the content:
net.ipv6.conf.eth0.accept_ra=0
Then I rebooted all containers and checked the value to be set correct.
This solved my problem since ~23 hours...
I have a Soyoustart (OVH brand) server with Proxmox 4 installed. I had the same problem, default route got lost short after boot. I saw link-local gateways in the route command.
Setting net.ipv6.conf.eth0.accept_ra=0 inside the container seems to have fixed the issue with the OVH ra message. I...
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