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| About Volume Replicator support for IPv6 | ||
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Volume Replicator includes support for Internet Protocol Version 6 (IPv6) addresses. To configure replication, you can specify IPv6 addresses.
Note the following:
You must set the IP preference, whether Volume Replicator should use IPv4 or IPv6 addresses, before you configure replication.
When you specify host names while configuring replication, Volume Replicator resolves the host names with the IP addresses associated with them. This setting determines which IP protocol Volume Replicator uses to resolve the host names.
Use Veritas Enterprise Administrator (VEA) (Control Panel > VVR Configuration > IP Settings tab) to set the IP preference.
Using the Replicated Data Set (RDS) wizard, you can specify IPv6 addresses that are associated with the Primary and Secondary host names.
Using the VVR Security Service Configuration Wizard, you can specify IPv6 addresses for hosts on which you want to configure the VxSAS service.
Volume Replicator commands that use an IP address, either as an input parameter or as an output, now support IPv6 addresses.
For example, the vxrds changeip command that is used to change the host name or IP address of the Primary or Secondary RLINKs now accepts IPv6 addresses as input.
Volume Replicator does not support replication in cases where the Primary and Secondary systems in an RDS use different IP addresses. For example, if the Primary host uses an IPv4 address and the Secondary host uses an IPv6 address, this configuration is not supported.
In cases where the Primary host uses only an IPv4 address, and the Secondary host uses both IPv4 and IPv6 addresses, Volume Replicator automatically selects an IPv4 address for the Secondary.
Volume Replicator does not support replication for a IPv6-only system. An IPv6-only system is a system that implements only IPv6. It only has an IPv6 address in the name service database.