Unable to add IPv6 address in SolusVM: Invalid IPv6 format

Symptoms

Unable to add IPv6 address in IP Blocks > IPv6 block > Manage IP's:

SVM_ERROR: Invalid IPv6 format

Cause

The incorrect format is used to add IPv6 address:

CONFIG_TEXT: 2001:db8:f61:a1ff:0:0:0:0

Resolution

Use 4-digits format when adding IPv6 address, for example:

SVM_INFO: 2001:0db8:0f61:a1ff:0000:0000:0000:0000