Ask Your Question

Revision history [back]

Bytes accumulation in an ICMP packet

Hi everyone, my ICMP packet has a line stating that "Timestamp from icmp data: Apr 1, 2021 10:42:04.634801000 SE Asia Standard Time". I wondered if the bytes from this timestamp would be included in the ICMP data or in the ICMP header. Thanks for replying!

This is my packet:

Frame 4: 98 bytes on wire (784 bits), 98 bytes captured (784 bits) on interface wlp2s0, id 0 Ethernet II, Src: TpLinkTechno_fc:53:7e (18:d6:c7:fc:53:7e), Dst: Intel_3c:ac:58 (a0:d3:7a:3c:ac:58) Internet Protocol Version 4, Src: 192.168.1.1, Dst: 192.168.0.105 Internet Control Message Protocol Type: 0 (Echo (ping) reply) Code: 0 Checksum: 0x14ce [correct] [Checksum Status: Good] Identifier (BE): 13 (0x000d) Identifier (LE): 3328 (0x0d00) Sequence Number (BE): 1 (0x0001) Sequence Number (LE): 256 (0x0100) [Request frame: 3] [Response time: 2.935 ms] Timestamp from icmp data: Apr 1, 2021 10:42:04.634801000 SE Asia Standard Time [Timestamp from icmp data (relative): 0.004796943 seconds] Data (40 bytes)

Bytes accumulation in an ICMP packet

Hi everyone, my ICMP packet has a line stating that "Timestamp from icmp data: Apr 1, 2021 10:42:04.634801000 SE Asia Standard Time". I wondered if the bytes from this timestamp would be included in the ICMP data or in the ICMP header. Thanks for replying!

This is my packet:

Frame 4: 98 bytes on wire (784 bits), 98 bytes captured (784 bits) on interface wlp2s0, id 0
Ethernet II, Src: TpLinkTechno_fc:53:7e (18:d6:c7:fc:53:7e), Dst: Intel_3c:ac:58 (a0:d3:7a:3c:ac:58)
Internet Protocol Version 4, Src: 192.168.1.1, Dst: 192.168.0.105
Internet Control Message Protocol
    Type: 0 (Echo (ping) reply)
    Code: 0
    Checksum: 0x14ce [correct]
    [Checksum Status: Good]
    Identifier (BE): 13 (0x000d)
    Identifier (LE): 3328 (0x0d00)
    Sequence Number (BE): 1 (0x0001)
    Sequence Number (LE): 256 (0x0100)
    [Request frame: 3]
    [Response time: 2.935 ms]
    Timestamp from icmp data: Apr  1, 2021 10:42:04.634801000 SE Asia Standard Time
    [Timestamp from icmp data (relative): 0.004796943 seconds]
    Data (40 bytes)

bytes)