On Oracle Solaris 11.2 systems, IPv6 addrconf type test addresses cannot be reliably configured on IPMP underlying interfaces. Attempts to configure addrconf addresses on an underlying interface will fail in a variety of ways. For example:
# ipadm NAME CLASS/TYPE STATE UNDER ADDR net0 ip ok ipmp0 -- net1 ip ok ipmp0 -- ipmp0 ipmp ok -- -- ipmp0/v4 static ok -- 10.134.xx.xx/24
# ipadm create-addr -T addrconf net0 ipadm: cannot create address: Insufficient memory
Workaround: Because IPMP test addresses are used for probe-based failure detection, you can use a static link-local test address instead of an addrconf test address.