I have a server placed in a DC where I also have placed an Meraki MX64 which I got from the CMNA course. From my home I have a site-to-site VPN tunnel to the MX64 but because Meraki MX still doesn’t fully support IPv6 I can’t use IPv6 on that server. When I tried to update a Ubuntu VM it tried to use IPv6 and didn’t fall back to IPv4 so to fix that I had to force it to use IPv4 like this:
apt-get -o Acquire::ForceIPv4=true update
apt-get -o Acquire::ForceIPv4=true upgrade
Then it worked and I could update my VM. It would be nice if Meraki could release full support for IPv6 soon.