Can't comment on other control panels, but SolusVM does support IPv6 (with some limitations). It just isn't meant to support a VPS with only IPv6 and no IPv4, but should work fine for a VPS with both IPv4 and IPv6 addresses. Except for some brokeness, like the IPv6 rDNS which is currently broken in SolusVM so it also needs custom scripting to make it work.
Is it possible to make another interface on the host and then assign a private IP range like 192.168.1.0 to it and assign guests an IP in this range then have a gateway with NAT to allow it to get out onto the internet with IPv4 but then only IPv6 traffic can come in. Only an idea, not sure if it would actually work, but seems quite feasible.
—- I guess me and mitgib pressed submit at almost the same time! and wohooo 100th post! <- sorry for the spam.
Any idea how to change from SolusVM to Virtualizor keeping the current VPS's?
Removing solus vm doesnt delete VPS'es. just removes the panel. Firstly you need to remove apache/lighttpd or whatever it uses you can do this via yum. Then remove the CRON's and Startup files. then just delete the solusvm directory. That pritty much removes it.
SolusVM has the option to select how many IPv6 addresses you want, and how many IPv4 addresses you want when building the VM in the admincp, and your also able to create it just with IPv6 addresses but just not assigning no Ipv4 addresses or creating it and then removing the Ipv4.
My co-worker Bryan, he's inlove with IPv6 and has been using it for almost this whole year now and don't even use IPv4 no more for anything, not even at his house.. lol, but I been doing alot of testing with XEN lately on the dummy node I placed into our racks to give out a buncha free xen vps's to people in our IRC community to test on for the same thing your asking here.
It's possible, and if you check soluslabs.com (The solusvm people who created the control panel) on there forum's theres a subject about how to create a VPS with just IPv6 addresses posted by my co-worker Bryan.
Theres also a few cool tricks you can do also if you don't add a ipv4 address, but do becareful because i was testing it out with openvz and it caused some problems with the setup of everything had it crashing/failing a few times if you don't do it correctly. i wouldn't try anything like this if its a production server and you have clients and such on it i'd try it just on a test dummy server to make sure u have everything right at first.