摘要:
A method is provided of using the Host Identity Protocol (HIP) to at least partially secure communications between a first host (102) operating in a first network environment and a second, HIP-enabled host (122) operating in a second network environment, with a gateway node (114) forming a gateway between the two environments. In the method, an identifier is associated with the first host (102), stored at the gateway node (114), and sent to the first host (102). The identifier is then used as a source address in a subsequent session initiation message sent from the first host (102) to the gateway node (114), having an indication that the destination of the message is the second host (122). The stored identifier at the gateway node is then used to negotiate a secure HIP connection to the second host. The first network environment may be a UMTS or GPRS environment, in which case the gateway node may be a Gateway GPRS Support Node (GGSN).
摘要:
A method of facilitating location update signalling within a communication network between a mobile node and an end host includes establishing a trust relationship between one or more end hosts (1) and a proxy (3). When a mobile node (2) is handed-off, a location update is performed between the mobile node (2) and the proxy (3), and a location update message is sent from the proxy to the end host(s) having the trust relationship with the proxy. Multiple end hosts may authorise the same proxy to perform location update signalling on their behalf. The number of signalling messages required to perform the location update may be reduced, compared to a legacy method in which the mobile node is required to perform location update signalling with each end host.
摘要:
A method of configuring a plurality of rendezvous servers to provide a Host Identity Protocol, HIP, based mobility service to HIP nodes, where the servers are arranged in a hierarchical branching structure. For each HIP node, a Host Identity Tag, HIT, and contact address mapping is registered with a rendezvous server. That server then identifies itself and the HIT to each higher level server within the same branch, without explicitly identifying the contact address to those higher level servers wherein, in use, when a first rendezvous server receives a HIP contact message addressed to a given HIT, if that first server is unaware of the destination HIT, it forwards the message to a higher level server within the same branch and if the first server is not the server at which the HIT is registered but is aware of the HIT, it forwards the contact message to the neighbouring rendezvous server corresponding to the HIT.
摘要:
A method is provided of at least partially securing communications, via a HIP proxy (16), between a first host (12) which is not HIP enabled and a second host (14) which is HIP enabled, the method comprising: sending (A) a query from the first host (12) to resolve the IP address of the second host (14); in response to said query, retrieving (B, C) an IP address (IPfa) and HIT (HIThip) associated with the second host (14), returning (E) from the proxy (16) a substitute IP address (IPres) associated with the second host (14), and maintaining (D) at the proxy (16) a mapping between the substitute IP address (IPres), the retrieved IP address (IPfa) and the retrieved HIT (HIThip); and upon receipt (F) of a session initiation message (TCP SYN) at the proxy (16) from the first host (12) including as its destination address the substitute IP address (IPres), using the mapping to negotiate a secure HIP connection (22) between the proxy (16) and the second host (14).
摘要:
A network comprises a NetLMM domain having at least one Host Identity Protocol proxy coupled to one or more Access Points for communicating with a Mobile Node and acting, in use, as an Access Router for the NetLMM domain. Use of an HIP proxy as an Access Router allows the Access Router itself to be mobile. Furthermore, the Access Router can reside in IPv4 networks, and can even be behind NAT boxes located between the Access Router and a Local Mobility Anchor to which the Access Router is registered. The invention may be applied using a hierarchical architecture in which each domain comprises a respective Local Mobility Anchor coupled to each HIP proxy acting as an Access Router in the domain. The Local Mobility Anchor of a domain may itself be an HIP Local Mobility Anchor. Alternatively, the HIP proxies in a domain may be arranged in a distributed manner.
摘要:
A method of migrating a virtual machine comprises a first manager, managing a first computing environment (such as a computing cloud), initiates migration of a virtual machine currently executing on a first vM2ME (virtual machine-to-machine equipment) in the first computing environment to a second computing environment (such as another computing cloud). Once the VM has migrated, the first manager disables execution of the first vM2ME.
摘要:
A method is presented of establishing communications with a Virtual Machine, VM, in a virtualised computing environment using a 3GPPcommunications network. The method includes establishing a Machine-to-Machine Equipment Platform, M2MEP, which comprises a Communications Module, CM, providing an end-point of a communication channel between the 3GPP network and the VM. A virtual Machine-to-Machine Equipment is established that comprises a VM running on the M2MEP and a downloadable Subscriber Identity Module, associated with the CM. The Subscriber Identity Module includes security data and functions for enabling access via the 3GPP network. The CM utilises data in the Subscriber Identity Module for controlling communication over the communication channel between the VM and the 3GPP network.
摘要:
A method is presented of providing a subscriber identity for the provision of services on behalf of the subscriber in a virtual computing environment. The method includes receiving a request to establish an execution environment for a virtual machine-to-machine equipment, vM2 M E. The vM2ME is provided, comprising software for execution in the virtual computing environment and a downloadable Subscriber Identity Module. A Communications Module, CM, is set up for execution in a domain of a virtualisation platform. The CM provides an end-point for communications between the vM2ME and a 3GPP network. The Subscriber Identity Module is installed for execution together with the CM, the Subscriber Identity Module including a 3GPP identity of the subscriber, security data and functions for enabling access to the vM2ME via the 3GPP network.
摘要:
A method is provided of at least partially securing communications, via a HIP proxy (16), between a first host (12) which is not HIP enabled and a second host (14) which is HIP enabled, the method comprising: sending (A) a query from the first host (12) to resolve the IP address of the second host (14); in response to said query, retrieving (B, C) an IP address (IPfa) and HIT (HIThip) associated with the second host (14), returning (E) from the proxy (16) a substitute IP address (IPres) associated with the second host (14), and maintaining (D) at the proxy (16) a mapping between the substitute IP address (IPres), the retrieved IP address (IPfa) and the retrieved HIT (HIThip); and upon receipt (F) of a session initiation message (TCP SYN) at the proxy (16) from the first host (12) including as its destination address the substitute IP address (IPres), using the mapping to negotiate a secure HIP connection (22) between the proxy (16) and the second host (14).
摘要:
A method is presented of establishing communications with a Virtual Machine, VM, in a virtualized computing environment using a 3GPPcommunications network. The method includes establishing a Machine-to-Machine Equipment Platform, M2MEP, which comprises a Communications Module, CM, providing an end-point of a communication channel between the 3GPP network and the VM. A virtual Machine-to-Machine Equipment is established that comprises a VM running on the M2MEP and a downloadable Subscriber Identity Module, associated with the CM. The Subscriber Identity Module includes security data and functions for enabling access via the 3GPP network. The CM utilizes data in the Subscriber Identity Module for controlling communication over the communication channel between the VM and the 3GPP network.