公开(公告)号：KR100426055B1

公开(公告)日：2004-04-06

申请号：KR1020010082415

申请日：2001-12-21

Applicant: 한국전자통신연구원

Inventor： 박정수 ,  인민교 ,  홍용근 ,  김용진

IPC: H04L12/18

Abstract: PURPOSE: A method for automatically and stably allocating multicast addresses of an IPv6(Internet Protocol version 6)-based node in a network layer is provided to combine a lower 64-bit interface ID of link-local unicast addresses and side-local unicast addresses set in interfaces of every node with information acquired from a router, so as to automatically generate link-local multicast addresses and side-local multicast addresses in a host. CONSTITUTION: Each IPv6 node checks whether unicast addresses are set in interfaces(S10). If so, a packet delivery range of the unicast addresses is checked, if global, to return to the step S10 without additional processing(S20). If the packet delivery range indicates side-local, a 16-bit subnet ID and a 64-bit interface ID are extracted from the unicast addresses(S30,S40). If the packet delivery range indicates link-local, only the 64-bit interface ID is extracted from the unicast addresses(S30). Whether to provide a security function for the 64-bit interface ID extracted from the unicast addresses is checked(S50). If the security function is decided to be provided, the 64-bit interface ID is enciphered(S60). If the security function is decided not to be provided, and after enciphering the 64-bit interface ID, a 32-bit group ID is generated(S70). And obtained information is combined to generate link-local multicast addresses and side-local multicast addresses and store generated addresses according to interfaces on each node(S80), then the step S80 is returned.

Abstract translation: 目的：提供一种在网络层中自动和稳定地分配基于IPv6（互联网协议版本6）的节点的多播地址的方法，以将链路本地单播地址的较低64位接口ID和本地单播地址 在每个节点的接口中设置从路由器获取的信息，从而在主机中自动生成链路本地组播地址和本地组播地址。 构成：每个IPv6节点检查接口中是否设置了单播地址（S10）。 如果是，则检查单播地址的分组传送范围（如果是全局的），返回到步骤S10而无需附加处理（S20）。 如果分组传送范围指示本地侧，则从单播地址中提取16位子网ID和64位接口ID（S30，S40）。 如果分组传送范围指示链路本地，则从单播地址仅提取64位接口ID（S30）。 检查是否为从单播地址提取的64位接口ID提供安全功能（S50）。 如果决定提供安全功能，则对64位接口ID进行编码（S60）。 如果决定不提供安全功能，并且在对64位接口ID进行加密之后，生成32位组ID（S70）。 并且获得的信息被组合以生成链路本地多播地址和本地多播地址并且根据每个节点上的接口存储生成的地址（S80），然后返回步骤S80。

公开(公告)号：KR1020030024104A

公开(公告)日：2003-03-26

申请号：KR1020010057090

申请日：2001-09-17

Applicant: 한국전자통신연구원

Inventor： 인민교 ,  박정수 ,  홍용근 ,  김용진

IPC: H04L12/28

CPC classification number: H04L61/2069 ,  H04L12/189

Abstract: PURPOSE: A method for assigning a multicast address using a link local address and an apparatus therefor are provided to assign the multicast address which does not generate a collision with an other multicast address using a link local IPv4(Internet Protocol version 4) address without a separate multicast address assignment server. CONSTITUTION: A host selects lower 16 bits, combines the selected lower 16 bits with prefix information, and generates one link local host IP address without a DHCP(Dynamic Host Configuration Protocol) server(S101). The host checks whether the collision of the generated link local host IP address is generated in a link through an ARP(Address Resolution Protocol)(S102). If the collision of the generated link local host IP address is not generated, the host assigns the corresponding address as its link local host address(S105). The host generates prefix information for a plurality of multicast addresses usable in a predetermined local area corresponding to prefix information of the assigned address(S106). The host copies the lower 16 bits of the assigned link local host address through the collision test(S107). The host combines the copied lower 16 bits of the link local host address with a plurality of generated prefix information, and assigns 3 multicast addresses in the link(S108).

Abstract translation: 目的：提供一种使用链路本地地址分配多播地址的方法及其装置，用于使用链路本地IPv4（因特网协议版本4）地址分配不与其他多播地址生成冲突的多播地址，而不使用 单独的组播地址分配服务器。 构成：主机选择低16位，将所选低16位与前缀信息进行组合，并生成一个无DHCP（动态主机配置协议）服务器的链路本地主机IP地址（S101）。 主机检查生成的链路本地主机IP地址的冲突是否通过ARP（地址解析协议）在链路中生成（S102）。 如果不产生生成的链路本地主机IP地址的冲突，则主机分配对应的地址作为其链路本地主机地址（S105）。 主机为对应于所分配的地址的前缀信息的预定的本地区域中可用的多个多播地址生成前缀信息（S106）。 主机通过碰撞测试复制分配的链路本地主机地址的低16位（S107）。 主机将链路本地主机地址的复制的低16位与多个生成的前缀信息相结合，并在链路中分配3个多播地址（S108）。