公开(公告)号：US07193996B2

公开(公告)日：2007-03-20

申请号：US10085324

申请日：2002-02-28

申请人： Ephraim Webster Dobbins ,  Robert Flagg Penfield ,  Ajay Manju ,  Ping Zhou

发明人： Ephraim Webster Dobbins ,  Robert Flagg Penfield ,  Ajay Manju ,  Ping Zhou

IPC分类号： H04L12/56

CPC分类号： H04L29/12462 ,  H04L29/06027 ,  H04L29/12009 ,  H04L29/12481 ,  H04L45/00 ,  H04L61/255 ,  H04L61/2557 ,  H04L65/80

摘要： A system and method for determining a source of an Internet protocol packet (IP). Generally, the system comprises a memory and a processor. The processor compares a destination address of the IP packet to a first destination address stored within a first destination address cell of the memory, and compares a destination port of the IP packet to a first destination port stored within a first destination port cell of the memory. The network processor also compares a source address of the IP packet to a first source address stored within a first source address cell of the memory, and compares a source port of the IP packet to a first source port stored within a first source port cell of the memory, wherein the stored first source address and the stored first source port are associated with the stored first destination address and the stored first destination port. The network processor also stores the source address and source port of the IP packet within the memory to determine the source of the IP packet if: the destination address and destination port of the IP packet match the stored first destination address and stored first destination port; the source address and source port of the IP packet do not match the stored first source address and stored first source port; and the stored first source address and stored first source port are universally accepted bits.

摘要翻译： 一种用于确定因特网协议分组（IP）的源的系统和方法。 通常，系统包括存储器和处理器。 处理器将IP分组的目的地地址与存储在存储器的第一目的地地址单元中的第一目的地地址进行比较，并且将IP分组的目的地端口与存储在存储器的第一目的地端口单元内的第一目的地端口进行比较 。 网络处理器还将IP分组的源地址与存储在存储器的第一源地址单元中的第一源地址进行比较，并将IP分组的源端口与存储在第一源端口单元内的第一源端口进行比较 存储器，其中存储的第一源地址和存储的第一源端口与存储的第一目的地地址和存储的第一目的地端口相关联。 网络处理器还将IP分组的源地址和源端口存储在存储器内以确定IP分组的源，如果：IP分组的目的地址和目的地端口与存储的第一目的地址和存储的第一目的地端口匹配; IP包的源地址和源端口与存储的第一个源地址和存储的第一个源端口不匹配; 并且所存储的第一源地址和存储的第一源端口是普遍接受的位。