The support of ad-hoc networks as extension of infrastructure operator networks is increasing its strength in next generation networks, due to the increasing requirement for ubiquitous access of the users. This paper describes the Ad-hoc network integration mobility architecture being developed inside the IST project Daidalos II. The main purpose of this architecture is to seamlessly support the movement of nodes between ad-hoc and infrastructure networks, maintaining in the ad-hoc networks all the features being supported in the infrastructure. The architecture makes use of and extends IEEE 802.21 and NetLMM IETF concepts for mobility support and integration, and multihoming procedures for multiple gateways support.