IPv6 address range documentation is misleading

[gigatux]

Description
Documentation bug - IPv6 address range documentation is misleading

To Reproduce
N/A

Expected behavior
N/A

Details
Documentation only.

Information on Virtual Network Templates is confusing under the IPv6 Address Range (no-SLAAC) section.

The PREFIX_LENGTH implies that OpenNebula can handle IPv6 ranges natively, and that it will allocate ranges to VMs accordingly. In reality, this is only for internal configuration of VMs. Combined with the SIZE element being a 64-bit number (which really is too small for IPv6), people assume that the SIZE is the number of prefixes of length PREFIX_LENGTH.

Information should be added to let users know that OpenNebula is really unable to handle IPv6 ranges, and SIZE really refers to individual IPv6 addresses, i.e. /128s.

Additional context
Confused messages seem to regularly appear about this so hopefully documentation will ease confusion.

Progress Status

• Code committed
• Testing - QA
• Documentation (Release notes - resolved issues, compatibility, known issues)