Is a mixed IPv4/IPv6 (not dualstack, but some cluster hosts IPv4, some v6) possible?

[ausserirdischesindgesund]

A very newbie question: I've got a purely v4 Proxmox cluster, and want to migrate it (the internal addressing used for corosync) to IPv6 as an end goal. Would it be possible to add a node with just a v6 address, and remove one v4 node, and so on?

Or can this be done with dual stack addressing, by adding v6 addresses to all nodes first?

The various renumbering the addressing instructions (editing corosync.conf, /etc/hosts, ... ) sound somewhat scary to me, if there is a workaround for the special case of changing from IPv4 to v6 adressing, I would be very happy.

TIA
/ralph

 

[czechsys]

Using dual-stack is better in such cases for failback in case of the problems.
If you want be to sure, you can create pve test cluster as VMs.

 

[news]

Or can this be done with dual stack addressing, by adding v6 addresses to all nodes first?

Ich würde immer IPv4 und IPv6 zusammen verwenden, dann hat man jederzeit sein System im Zugriff.
Über einen Firewall kann man dann immer noch die externen Zugriffe auf IPv6 begrenzen.

 

[ausserirdischesindgesund]

Thanks to the both of you! I will try the dual-stack route.