摘要:
Provided are a system and method for allocating an Internet protocol version 4 (IPv4) address through authentication of a dual stack transition mechanism (DSTM) node in a DSTM communication network, DSTM being an IPv4/IPv6 address translation mechanism. The system and method perform authentication when an IPv4 address is allocated between a DSTM node and the DSTM server in the DSTM communication network. According to the system and method, when the DSTM node requests IPv4 address allocation, the DSTM server authenticates the DSTM node, and then allocates an IPv4 address. Therefore, it is possible to solve a problem of exhaustion of an IPv4 address pool of the DSTM server by a denial of service (DoS) attack, as well as potentially solve a security problem of an IPv4/IPv6 translation process.
摘要:
A method for providing end-to-end security service in a communication network having an NAT-PT function comprises: performing security negotiation between a first node included in a first communication network having the network address translation-protocol translation function and a second node included in a second communication network operating with a protocol different from the first communication network; storing protocol translation information generated when the security negotiation is performed in the first node; and performing security transmission between the first and second nodes using the stored protocol translation information. The method transmits the address translation information to the ends in advance, thereby being capable of applying the security service using the address information on transmitting the data between hosts in the communication network using the address translation method.
摘要:
A method is provided for registering a mobile router in an Internet Protocol version 6 over Low power Wireless Personal Area Network (6LoWPAN) network. The mobile router detects movement into a wireless network through the reception of a beacon message, and sends a Router Solicitation (RS) message requesting registration in the wireless network to a gateway. The gateway acquires an address of the mobile router from the RS message, stores the acquired address, assigns a new address to be used in the wireless network to the mobile router, and sends a Router Advertisement (RA) message with assigned address information and gateway address information, to the mobile router. The mobile router acquires the assigned address information and the gateway address information from the RA message.
摘要:
An apparatus and method for processing Internet protocol (IP) packets using a network processor, wherein functions of the network processor are dynamically allocated to threads according to an amount of received packets by a type thereof. As a result, the use efficiency of the network processor is improved, and the speed of processing of the packets is increased accordingly.
摘要:
A method is provided for supporting mobility of a Mobile Node (MN) in a multi-hop Internet Protocol (IP) network, in which an MN that has moved from a source Personal Area Network (PAN) to a target PAN, sends a Router Solicitation (RS) message with an option for requesting its profile to a gateway of the target PAN, and receives a Router Advertisement (RA) message from the gateway in response to the RS message. The RA message includes a home prefix of the MN as the requested profile. The method supports mobility of MNs, enables unicast communication, and facilitates efficient use of the network.
摘要:
In a method and system for supporting resource reservation protocol (RSVP) in an Internet protocol version 4 (IPv4)/Internet protocol version 6 (IPv6) hybrid network, the method includes the steps of: transmitting, from a dual stack host in an IPv6 network, an end-to-end quality of service (QoS) session establishment request message to an IPv4 server through a dual stack transition mechanism tunnel end point (DSTM TEP); transmitting, from the IPv4 server, an end-to-end path message to the dual stack host through the DSTM TEP; transmitting, from the DSTM TEP to the dual stack host, a path message for reserving resources in the IPv6 network; transmitting, from the dual stack host, an end-to-end resource reservation request message to the IPv4 server through the DSTM TEP, and making a resource reservation in an IPv4 network; and transmitting, from the dual stack host to the DSTM TEP, a resource reservation request message, and making a resource reservation in the IPv6 network.
摘要:
In a queue management method and apparatus in a network processor, enqueue completed and de-queue completed messages are transmitted to a scheduler when a queue manager performs enqueuing and de-queuing operations in the network processor, so that the queue processing time is synchronized between the queue manager and the scheduler. The queue manager in the network processor performs the de-queuing operation, includes the packet size information extracted from de-queued packet identification information in the de-queue completed message, and transmits it to the scheduler, so that the scheduler calculates the correct quantum of the port and queue.
摘要:
In a buffer switch and scheduling method thereof, conflict sensing and random selection logic configuration are not required. The buffer switch comprises: input buffer units for converting serial data inputted from respective input ports to parallel data; shift and comparison units for comparing currently stored data to parallel data aligned by the input buffer units, for determining paths to output the data depending on data validity, and for calculating a gating time needed to forward the data; output buffer units for outputting the data received via the input ports at the same speed as the speed at reception; a switching unit for gating paths between the shift and comparison units and the output buffer units; and a control unit for establishing the paths by enabling the input buffer units and the output buffer units for the gating time of relevant buffers depending on the establishment paths and the gating time from the shift and comparison unit.
摘要:
A medium access control (MAC) frame provision method establishes security in an IEEE 802.15.4 network. A MAC frame is generated, which includes a MAC header, a payload field, and a frame check sequence (FCS) field, the payload field including relevant main data according to a frame type defined in the MAC header. A disguised decoy data sequence number (DSN) is generated and inserted into the MAC header. A real DSN, which is a corresponding transmission sequence number of the MAC frame, is generated and inserted into the payload field. The MAC frame is transmitted, including the encrypted payload field, to a counterpart node. A MAC ACK frame acknowledges reception of the transmitted MAC frame; and a DSN is compared in the received MAC ACK frame with the real DSN. An authentication of the counterpart node is performed when the received MAC ACK frame is equal to the real DSN.
摘要:
A medium access control (MAC) frame provision method establishes security in an IEEE 802.15.4 network. A MAC frame is generated, which includes a MAC header, a payload field, and a frame check sequence (FCS) field, the payload field including relevant main data according to a frame type defined in the MAC header. A disguised decoy data sequence number (DSN) is generated and inserted into the MAC header. A real DSN, which is a corresponding transmission sequence number of the MAC frame, is generated and inserted into the payload field. The MAC frame is transmitted, including the encrypted payload field, to a counterpart node. A MAC ACK frame acknowledges reception of the transmitted MAC frame; and a DSN is compared in the received MAC ACK frame with the real DSN. An authentication of the counterpart node is performed when the received MAC ACK frame is equal to the real DSN.