Enable the Internet Protocol Security (IPsec) policy created under the OSPF virtual link.
default ipv6 area virtual-link {A.B.C.D} {A.B.C.D} ipsec enable
ipv6 area virtual-link {A.B.C.D} {A.B.C.D} ipsec enable
no ipv6 area virtual-link {A.B.C.D} {A.B.C.D} ipsec enable
The default is disabled.
OSPF Router Configuration