how to read wireshark capture

details inside.Ethernet II:You can see the hardware address of the source and destination.Unicast represents unicast .？？ That pile of ... What is it? What is LG IG?A: Those points refer to the fields to be marked are not important information, the number of important bits is displayed.IPV4:First put the IP header format to help analyze:Start by stating that the protocol version used is IPv4 and the header length is 20 bytes.Differentiatedservices field: Differentiating service fields(DSCP 0x00:

1. Open the Wireshark software and select the appropriate network card from the interface list, for example, "Local Area Connection" on my PC, then select "Start" to start the capture program.2. Open the School homepage, enter your account and password to log in to your on-campus mailbox.3. Terminate the packet capture program.4. In the Filter column filter fill

1. First give the mobile phone the root permission and execute the command:Adb rootAdb remountAfter OK: Put tcpdump in the c root directory: C :\ 2. Run the following command:Adb push c:/tcpdump/data/local/tcpdump(This Command copies tcpdump to your mobile phone) 3. adb shell chmod 6755/data/local/tcpdumpIs to assign permissions to tcp 4. adb shell/Data/local/tcpdump-p-vv-s 0-w/sdcard/capture. pcapEntering this command is equivalent to starting the

In Linux, tcpdump can be used to capture the package of the loopback interface with the-I lo parameter. If the server and client are installed on the same machine, debugging is convenient. Wireshark for Linux also has the lo option in the NIC menu, which is also very convenient. This option does not appear to be available in windows. You can solve this problem through routing configuration. Open the command

Pcap: file has 186435570-byte packet, bigger than maximum of 65535 Solution: Set the transmission mode to binary. When using TFTP for Transmission TFTP> connect 192.168.1.1 TFTP>?Commands may be abbreviated. commands are:Connect connect to remote TFTPMode Set File Transfer ModePut Send FileGet receive fileQuit exit TFTPVerbose toggle verbose modeTrace toggle packet TracingStatus show current statusBinary set mode to octetASCII set mode to netasciiRexmt set per-packet Retransmission timeou

Wireshark packet capture Analysis of TCP establishment and disconnection Process 1. Establish a connection over TCP Note: In this figure, Hosta acts as the client and hostb acts as the server. TCP is the transport layer protocol in the Internet. It uses the three-way handshake protocol to establish a connection. When the active Party sends a SYN connection request, wait for the other party to answer SYN, A

From: Http://wiki.wireshark.org/CaptureSetup/Loopback @ ++ Alternatives A required cial network sniffer called commview (from tamosoft) allows to capture packets on the localhost network adapter but it dissects fewer protocols, so you can capture packets with commview and save them into a file and open it with Wireshark. An other alternative is to