|
Chapter Notes | ||
12.1 | 12.2 | 12.3 |
Sample output from
pingpackets
An example output is given below. Note that numeric values of all fields are printed and details follow. For example, the Protocol field contains the value 17, which corresponds to UDP. Similarly, IP addresses are given in dotted decimal followed by the computer name). ---------------------------------------------------------------------------- ETH: ----- Ether Header ----- ETH: ETH: Packet 1 ETH: Packet size = 210 bytes ETH: Destination = 08:00:20:01:3D:94 ETH: Source = 08:00:69:01:5F:0E ETH: Ethertype = 0800 (IP) IP: ----- IP Header ----- IP: IP: Version = 4 IP: Header length = 20 octets IP: Type of service = 00 IP: ..0. .... = routine IP: ...0 .... = normal delay IP: .... 0... = normal throughput IP: .... .0.. = normal reliability IP: Total length = 196 bytes IP: Identification = 19846 IP: Flags = 0X IP: .0.. .... = may fragment IP: ..0. .... = more fragments IP: Fragment offset = 0 octets IP: Time to live = 253 hops IP: Protocol = 17 (UDP) IP: Header checksum = 18DC IP: Source address = 128.10.26.116 (monkey.cs.purdue.edu) IP: Dest. address = 128.10.3.100 (xinuserver.cs.purdue.edu) IP: Data starts = 74 73 00 07 ... ----------------------------------------------------------------------------
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