正在加载图片...
the first packet(sent by the client),in the figure below,the packet contents area provides information about this packet.We see that the IP datagram within this packet has protocol number 01,which is the protocol number for ICMP.This means that the payload of the IP datagram is an ICMP packet. 回 dt 思解解口☑x%B回中中女下亚目目9只▣ Eter:icmp Clea apply c1 (3757) 143.8.14 003fd00068001093bc0a8065f5到 e. rtarntCormtolMsageProtocd(6enp,40btas P220:200 Figure 2 Wireshark output for Ping program with Internet Protocol expanded. Figure 3 focuses on the same ICMP but has expanded the ICMP protocol information in the packet contents window.Observe that this ICMP packet is of Type 8 and Code 0-a so-called ICMP "echo request"packet.(See Figure 4.23 of text.)Also note that this ICMP packet contains a checksum,an identifier,and a sequence number. the first packet (sent by the client); in the figure below, the packet contents area provides information about this packet. We see that the IP datagram within this packet has protocol number 01, which is the protocol number for ICMP. This means that the payload of the IP datagram is an ICMP packet. Figure 2 Wireshark output for Ping program with Internet Protocol expanded. Figure 3 focuses on the same ICMP but has expanded the ICMP protocol information in the packet contents window. Observe that this ICMP packet is of Type 8 and Code 0 - a so-called ICMP “echo request” packet. (See Figure 4.23 of text.) Also note that this ICMP packet contains a checksum, an identifier, and a sequence number
<<向上翻页向下翻页>>
©2008-现在 cucdc.com 高等教育资讯网 版权所有