Proxy Mobile IPv6 (PMIPv6) has been designed by the IETF as a network-based mobility management protocol to support the localized mobility of IP devices. Although several proposals have been made for localized routing optimization, they don’t take into account handover management and localized routing simultaneously. In fact, the localized routing state is restored after the handover management procedure, leading to packet loss and signaling overhead. On the other hand, Fast Handovers for PMIPv6 (F-PMIPv6) protocol has been designed to mainly solve the issues of the high handover delay and packet loss during handover that occur with PMIPv6. As a result, this paper looks at enhancing F-PMIPv6 by controlling the handover management with optimized localized routing and proposes an extension of PMIPv6 called optimized PMIPv6. The proposed protocol enhances the performance of PMIPv6 and F-PMIPv6 in terms of route optimization, handover delay, signaling cost and network utilization.