源数据包中的不可分片部分,Payload Length为此分片数据包的排除IPv6包头长以外的所有数据长度,Next Header中必然为Fragment Header for IPv6(44); 扩展包头——Fragment Header——内容:a. Next Header为源数据包中的Next Header;b. Fragment Offset: 第一个分片为0,之后的分片为8的整数倍;c. M flag:最后一个...
可选项字段的长度必须是32比特的整数倍,如果不足,必须填充0以达到此长度要求。 2.TCP header TCP Header Format 0 1 2 3 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-...
IPv6 Packet Header Format The IPv6 protocol defines a set of headers, including the basic IPv6 header and the IPv6 extension headers. The following figure shows the fields that appear in the IPv6 header and the order in which the fields appear. Figure 11-3 IPv6 Basic Header Format The ...
Il valore di IPv6 Header Format dovrebbe identificare il campo Traffic Class invece del campo Priority. Anche la voce Priority sulla stessa pagina dovrebbe essere sostituita dalla seguente descrizione di Traffic Class:Traffic Class - 8 bit traffic class field....
TCP Header FORMat 跟IP头部差不多,基本的长度也是20字节。TCP数据包是包含在一个IP数据报文中的。 好了,简单介绍到此为止。来看看我捕获的例子吧。这是一次FTP的连接,呵呵,是cuteftp默认的cuteftp的FTP站点,IP地址是:216.3.226.21。我的IP地址假设为:192.168.1.1。下面的数据就是TCO/IP连接过程中的数据传输。我...
In IPv6, the Options field of the IPv4 header has been removed and multiple extension headers have been introduced. This improves packet processing efficiency, enhances IPv6 flexibility, and provides better extensibility for the IP protocol. When multiple extension headers are used in the same packe...
OSPF has five types of packets: Hello, data description (DD), link state request (LSR), link state update (LSU), and link state acknowledgment (LSAck), which all have the same 24-bit packet header. Packet Format Figure 3-99Format of an OSPF packet header ...
TCP Header FORMat TCP Header FORMat 跟IP头部差不多,基本的长度也是20字节。TCP数据包是包含在一个IP数据报文中的。 好了,简单介绍到此为止。来看看我捕获的例子吧。这是一次FTP的连接,呵呵,是cuteftp默认的cuteftp的FTP站点,IP地址是:216.3.226.21。我的IP地址假设为:192.168.1.1。下面的数据就是TCO/IP连接过...
EtherHeader EtherProcessMap EventPackage fd_set Feature fenv_t FileInfo FlowControlInterface FlowControlModule FlowControlOp FlowControlQueue FlowControlQueues FormatBufferSetting FormatCallback FormatFrame FormatOutputConfig FormatSource FTW GfxFuncs GfxOpt glob_t GrallocBuffer...
3.2 IP Header / IP首部 34 3.3 IP Routing / IP路由选择37 3.4 Subnet Addressing / 子网寻址42 3.5 Subnet Mask / 子网掩码43 3.6 Special Case IP Addresses / 特殊情况的IP地址 45 3.7 A Subnet Example / 子网示例46 3.8 ifconfig Command / ifconfig命令47 ...