摘要:
Methods and devices are provided for identifying, locating and provisioning individual RFID devices in a network with “personalities” that are appropriate for the roles of the RFID devices. According to some implementations of the invention, a combination of EPC code information and existing networking standards form the basis of identifying and provisioning methods. For example, MAC address information and EPC information can be combined to identify a particular device and its location in a network. For implementations using the Dynamic Host Configuration Protocol (“DHCP”), DHCP Options may be used to pass provisioning information. Some implementations employ Domain Name Service (“DNS”) and dynamic DNS (“DDNS”) to allow easy identification of RFID devices.
摘要:
Techniques for assigning a network address to a host are based on authentication for a physical connection between the host and an intermediate device. One approach involves receiving first data at the intermediate device from an authentication and authorization server in response to a request for authentication for the physical connection. The first data indicates at least some of authentication and authorization information. A configuration request message from the host is also received at the intermediate device. The configuration request message is for discovering a logical network address for the host. A second message is generated based on the configuration request message and the first data. The second message is sent to a configuration server that provides the logical network address for the host. The configuration server is then able to provide the logical network address based on authorization and authentication information. The logical network address is thus based on the user, as is desirable to determine accounting information for billing purposes, to provide a minimum quality of service (QoS) according to a contract with the user, or to limit access by the user to the Internet and other services.
摘要:
Methods and devices are provided for identifying, locating and provisioning individual RFID devices in a network with “personalities” that are appropriate for the roles of the RFID devices. According to some implementations of the invention, a combination of EPC code information and existing networking standards form the basis of identifying and provisioning methods. For example, MAC address information and EPC information can be combined to identify a particular device and its location in a network. For implementations using the Dynamic Host Configuration Protocol (“DHCP”), DHCP Options may be used to pass provisioning information. Some implementations employ Domain Name Service (“DNS”) and dynamic DNS (“DDNS”) to allow easy identification of RFID devices.
摘要:
Methods and devices are provided for identifying and provisioning individual RFID devices in a network. According to some implementations of the invention, a combination of EPC code information and existing networking standards form the basis of identifying and provisioning methods. For example, MAC address information and EPC information can be combined to identify a particular device and its location in a network. For implementations using the Dynamic Host Configuration Protocol (“DHCP”), DHCP Options may be used to pass provisioning information. Some implementations employ Domain Name Service (“DNS”) and dynamic DNS (“DDNS”) to allow easy identification of RFID devices.
摘要:
Generating a binding between a source address and one or more roles of a user accessing the network and distributing the binding to a filter node. The source address is currently assigned to the device. The binding may be generated by one or more nodes on an ingress path used during authentication of the user. The binding may be distributed to the filter node on demand or without any request from the filter node. Responsive to a determination that the user is associated with a new source address, a new binding is generated to associate a new source address with the one or more roles for the user. The new binding is distributed to the filter node. Another aspect is a method of enforcing a role based security policy at a filter node, using bindings of source addresses to roles.
摘要:
A network device has a communications link to allow the device to communicate with customer devices and a processor. The processor is to receive neighbor discovery messages from requesting customer devices, examine the neighbor discovery messages to determine if the neighbor discovery message should be forwarded to other of the customer devices, and respond to the requesting customer devices.
摘要:
An isolation approach for network users associated with elevated risk is disclosed for protecting networks. In one approach a method comprises the computer-implemented steps of determining a user identifier associated with a network device that has caused a security event in a network; causing the network device to receive a network address that is selected from a subset of addresses within a specified pool associated with suspected malicious network users; and configuring one or more security restrictions with respect to the selected network address.
摘要:
In an embodiment, an electronic digital data packet router performs receiving a DHCP initiation message on a particular interface among a plurality of network interfaces,; modifying the DHCP initiation message by adding a particular DHCP option that signals a DHCP server to provide router configuration data, resulting in a modified DHCP initiation message; relaying the modified DHCP initiation message to the DHCP server; receiving, from the DHCP server, a DHCPOFFER message that comprises the particular DHCP option containing configuration data; configuring the router using the configuration data; relaying the DHCPOFFER message without the particular DHCP option on the particular interface toward another data packet router.
摘要:
Techniques are disclosed for dynamically determining or learning hostnames. According to embodiments described herein, a solicitation message is received at a first network device. Based on the solicitation message, a hostname is determined for a second network device that sent the solicitation message. A first network address is also determined for the second network device that sent the solicitation message. A mapping between the hostname and the first network address is stored at the first network device.
摘要:
Techniques for assigning a network address to a host are based on authentication for a physical connection between the host and an intermediate device. One approach involves receiving first data at the intermediate device from an authentication and authorization server in response to a request for authentication for the physical connection. The first data indicates at least some of authentication and authorization information. A configuration request message from the host is also received at the intermediate device. The configuration request message is for discovering a logical network address for the host. A second message is generated based on the configuration request message and the first data. The second message is sent to a configuration server that provides the logical network address for the host. The configuration server is then able to provide the logical network address based on authorization and authentication information.