Cisco Technology, Inc.

Alan R Ford

Steve Song Lee

Gregory Mintel

John T Chapman

Alon Shlomo Bernstein

Jamie Zabala

In one embodiment, a router is configured to relay a provisioning request originating from a remote network device to a remote provisioning server. When the router receives back a provisioning response including provisioning information identifying a first remotely stored configuration file, the router is configured to modify the provisioning information such that the modified provisioning information no longer identifies the first remotely stored configuration file. The router then relays the provisioning reply, which may identify a second different configuration file, to the remote network device.

Configuration file override

Methods and devices are provided for detecting or preventing unauthorized upgrades to a customer's quality of service in an access data network. Several aspects of the invention require customer nodes to properly perform an initialization procedure. For example, the initialization procedure may involve making a request to a server controlled by, or at least trusted by, the service provider. The initialization procedure may involve downloading a configuration file, such as a DOCSIS configuration file, from the trusted server. According to some such aspects of the invention, nodes that cannot properly perform the initialization procedure are prevented from coming online. According to other such aspects of the invention, nodes that cannot properly perform the initialization procedure are marked. A warning may be sent to marked nodes. A customer associated with a marked node may be charged a higher rate for service.

Configuration file download enforcement

In one example, a Cable Modem Termination System (CMTS) combines a value identifying itself with a cable modem Media Access Control (MAC) address stored in a provisioning request. The CMTS then relays the modified provisioning request to a provisioning server, which analyzes the value to identify a CMTS associated with the cable modem MAC address. Then, to regulate cable modem cloning or for other reasons, the provisioning server selects provisioning information for the cable modem according to the identified CMTS-MAC address association.

System for binding a device to a gateway to regulate service theft through cloning

In one embodiment, a cloned cable modem detector is configured to assemble a table associating cable modem physical addresses to Cable Modem Termination Systems (CMTSs) according to provisioning requests forwarded from the CMTSs. When one of the provisioning requests associates a cable modem physical address with a different CMTS than an existing association in the table, the detector outputs an indication of cable modem cloning.

Inter-gateway cloned device detector using provisioning request analysis

A network device has a port to allow the device to communicate with user devices. The network device also has a processor to assign any user devices in communication with the device to a group. The processor also monitors traffic of the user devices so as to control a traffic rate of the group.

Aggregate maximum throughput for groups of service flows

A remote survivable DHCP technique is described for facilitating communications between nodes of a computer network. According to a specific embodiment, the network include a remote survivable DHCP (RSD) system adapted to enable a DHCP relay agent to temporarily respond, during at least a portion of times when the DHCP server is down or unreachable, to DHCP-related requests from clients that have already received a valid DHCP lease offer from a DHCP server during at least a portion of times when the DHCP server is down or unreachable.

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Hornsby, Australia

Alan R Ford