Traditionally, replication between the Primary and the Secondary sites within VVR takes place through the IPv4 network. However, you can migrate VVR from IPv4 to the IPv6 network.
To migrate from IPv4 to IPv6, do the following in the order presented:
Configure IPv6 addresses on all the hosts in all the VVR sites.
Add new IP and NIC resources for the IP addresses in the VCS configuration. Creating new resources does not affect VVR replication in IPv4.
Use the vradmin changeip command to migrate VVR from IPv4 to IPv6. The command has the following syntax.
vradmin -g diskgroup changeip newpri=virtual_IPv6_1_address \ newsec=virtual_IPv6_2_address