HP Virtual Connect 4Gb Fibre Channel Module for c-Class BladeSystem - Manual (Page 296)

Appendix C: Using IPv6 with Virtual Connect 296
When disabling IPv6 in a multi enclosure environment, ensure IPv4 addresses are configured and reachable
in all the enclosures. IPv6 should be disabled in the primary enclosure first and then in the remote enclosures.
When a multi-enclosure domain is in dual configuration (IPv4-IPv6), disabling IPv6 in the primary enclosure
ensures that only IPv4 interconnect/OA module addresses are displayed to users in the VCM GUI and CLI.
Importing enclosures
An import can be performed in all the 3 IP modes: IPv4, IPv4-IPv6, and IPv6.
When a local import is performed, the available IPv4 or IPv6 IP addresses of the OA are used.
When import of a remote enclosure is attempted with a different IP configuration (primary enclosure in IPv4
and remote enclosure in IPv4-IPv6) other than the primary enclosure, the error message "ERROR: Enclosure
IP mode is not compatible with that of domain" is displayed in the VCM GUI and CLI.
Only enclosures with similar IP configurations can be imported to create a multi enclosure environment.
Primary enclosure Remote enclosure Impact
IPv4 IPV4 Allowed
IPv6 IPv6 Allowed
IPv4-IPv6 IPv4-IPv6 Allowed
IPv4-IPv6 IPv4 Not allowed*
IPv4 IPv4-IPv6 Not allowed*
IPv6 IPv4-IPv6 Not allowed*
IPv4 IPv6 Not allowed (OA not reachable)
IPv6 IPv4 Not allowed (OA not reachable)
*ERROR: Enclosure IP mode is not compatible with that of the domain
To prevent causing a NO-COMM state, do not disable IPv6 in either enclosure when a remote enclosure is
imported in IPv6-only mode.
VC FW update considerations
The support for IPv6, introduced in VC 4.10, requires the minimum version of OA to be 4.00. VCSU 1.9.0
or later is required to upgrade VC IPv6 configurations.
VC maintains IP address configuration status as shown in the following table.
IP address
configurations Details
IPv4 only OA and VCs are configured with IPv4-only addresses. This is the default configuration.
IPv6 only OA and VCs are configured with IPv6-only addresses. Avoid deploying an IPv6-only
configuration until the availability of IPv6-only support for the iLOs.
IPv4-IPv6 (dual) OA and VCs are configured with IPv4 and IPv6 addresses.
Upgrading from older versions to VC 4.10
VC can be upgraded directly from previous versions to VC 4.10. However, to use the IPv6 functionality, the
OA must be upgraded to at least OA 4.00. HP recommends upgrading the OA first. By default, IPv6 is
disabled on OA 4.00; therefore, VC can have IPv4 address configurations only. To use IPv6 addresses, IPv6