Juniper Networks, Inc.

John Liddy

John C Scano

Sanjay Wadhwa

Paul Raison

Sunil Gandhewar

Mathias Kokot

Sanjay Kalra

Colby Barth

Jason P Poirier

Sudhir Krishnan

Javier Aviles Blanco

Kathryn De Graaf

William D Townsend

Kathryn DeGraaf

Network (cloud) based customer premises equipment may receive, over a broadband access circuit, layer 2 traffic from an access device at a customer premises; provide dynamic host configuration protocol (DHCP) services for computing devices at the customer premises, the DHCP services providing Internet Protocol (IP) addresses to the computing devices at the customer premises; and provide network address translation (NAT) services for the computing devices at the customer premises.

Cloud based customer premises equipment

An example network device includes network interfaces and a control unit that receives a network configuration request from a client device and sends a network configuration response to the client device. The control unit comprises a network configuration protocol module that generates an authentication request in accordance with a network authentication protocol such that the authentication request includes a request for a second set of network configuration parameters based on a request for a first set of network configuration parameters in the network configuration request, and generates the network configuration response in accordance with the network configuration protocol, wherein the network configuration response is based on an authentication response generated by a second network device in accordance with the network authentication protocol, wherein the authentication response comprises a third set of network configuration parameters based on the request for the second set of network configuration parameters.

Tunneling DHCP options in authentication messages

In general, techniques are described for automatic assignment of hardware addresses within computer networks. As one example, a network device comprising a physical network interface and a control unit may implement these techniques. The network interface receives a first message from a client device requesting a layer three (L3) network address. The first message also includes a layer two (L2) hardware address currently assigned to a network interface of the client device. The control unit selects a replacement L2 hardware address for use by the network interface of the client device as a replacement for the L2 hardware address included in the first message and generates a second message having a field that specifies the replacement L2 hardware address. The network interface outputs the second message to the client device so as to automatically assign the replacement L2 hardware address for use by the network interface of the client device.

Automatic assignment of hardware addresses within computer networks

A method performed by a Dynamic Host Configuration Protocol (DHCP) server comprising receiving a DHCP DISCOVER message from a DHCP client; generating a challenge in response to the DHCP DISCOVER message; sending the challenge to an authentication device; receiving a first challenge response from the authentication device; generating a DHCP OFFER message; sending the challenge to the DHCP client in the DHCP OFFER message; receiving a DHCP REQUEST message that includes a second challenge response from the DHCP client; comparing the first challenge response with the second challenge response; and authenticating the DHCP client when the first challenge response and the second challenge response match.

Dynamic host configuration protocol (DHCP) authentication using challenge handshake authentication protocol (CHAP) challenge

In general, techniques are described for synchronizing resource bindings within computer networks. An intermediate network device comprising an interface card and a control unit may implement these techniques. The interface card receives a message from a server that allocates a network address for use by a client device identified by a unique identifier. The control unit stores data defining a binding between the unique identifier and the network address. The control unit includes a binding synchronization module that determines, based on a determination to release the binding, whether the binding release occurs in response to receiving a release message from the client device, and automatically generates a release message on behalf of the client device upon determining that the binding release did not occur in response to receiving a release message. The binding synchronization module outputs the automatically generated release message to the server that reserved the L3 network address.

Synchronizing resource bindings within computer network

In general, techniques are described for automatically releasing network resources reserved for use by network devices within a network. In particular, a network device, such as a router, may include an interface card that receives a first and a second message from respective first and second client devices requesting reservation of network resources. The first message may include a first identifier, while the second message may include a second identifier. Both messages however may also include the same additional context information that identifies the same context in which the first client device operates. The router may include a control unit that determines whether the additional context information included within the first and second messages is the same. Based on a determination that this information is the same, the control unit may automatically release resources reserved for use by the first client device within the network.

Determining a subscriber device has failed gracelessly without issuing a DHCP release message and automatically releasing resources reserved for the subscriber device within a broadband network upon determining that another subscriber device requesting the reservation of a network address has the same context information as the failed subscriber device

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Gardner, MA, United States of America

John Liddy