The management network can have an IP mode of either IPv4 or IPv6. If the IP mode is IPv4, the two server modules must have management IPv4 addresses on the same IPv4 subnet. If the IP mode is IPv6, the two server modules must have primary management IPv6 addresses on the same IPv6 subnet.
With an IP mode of IPv6, the server modules can also have secondary management IPv6 addresses. These addresses must be on the same IPv6 subnet, and that subnet must not overlap the subnet for the primary management IPv6 addresses. If one server module has a secondary management IPv6 address, the other server module must also have a secondary management IPv6 address.
The management network subnet or subnets cannot overlap the subnets for the S Series Node access and server interconnect networks.