2: ICMP ECHO Response

This is an ICMP ECHO response (reply) message generated in response to an earlier ICMP ECHO request message sent by the ping program. A small amount of data is included with the ICMP message.

Hexadecimal Dump of the Packet

           0: 0800 2086 354b 00e0 f726 3fe9 0800 4500    .. .5K..÷&?...E.
          16: 0054 aafb 4000 fc01 fa30 8b85 e902 8b85    .T.û@.ü.ú0......
          32: d96e 0000 45da 1e60 0000 335e 3ab8 0000    .n..E..`..3^:...
          48: 42ac 0809 0a0b 0c0d 0e0f 1011 1213 1415    B...............
          64: 1617 1819 1a1b 1c1d 1e1f 2021 2223 2425    .......... !"#$%
          80: 2627 2829 2a2b 2c2d 2e2f 3031 3233 3435    &'()*+,-./012345
          96: 3637                                       67


Decode of the Packet

ETHER:  ----- Ether Header -----
ETHER:
ETHER:  Packet 2 arrived at 17:37:12.02
ETHER:  Packet size = 98 bytes
ETHER:  Destination = 8:0:20:86:35:4b, Sun
ETHER:  Source      = 0:e0:f7:26:3f:e9, CISCO Router
ETHER:  Ethertype = 0800 (IP)
ETHER:
IP:   ----- IP Header -----
IP:
IP:   Version = 4
IP:   Header length = 20 bytes
IP:   Type of service = 0x00 (normal)
IP:   Total length = 84 bytes
IP:   Identification = 43771
IP:   Flags = 0x4
IP:         .1.. .... = do not fragment
IP:         ..0. .... = last fragment
IP:   Fragment offset = 0 bytes
IP:   Time to live = 252 seconds/hops
IP:   Protocol = 1 (ICMP)
IP:   Header checksum = fa30
IP:   Source address = 139.133.233.2, server.abdn.ac.uk
IP:   Destination address = 139.133.217.110, client
IP:   No options
IP:
ICMP:  ----- ICMP Header -----
ICMP:
ICMP:  Type = 0 (Echo reply)
ICMP:  Code = 0
ICMP:  Checksum = 45da
ICMP:  Payload Data

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