I need assistance to read my random packet generator report

asked 2025-09-12 16:25:17 +0000

Devaki gravatar image

updated 2025-09-13 02:37:05 +0000

Chuckc gravatar image

Hi There,

I here have attached a screen shot of my random packet generator reported created using wireshark. can someone help me interpret that please?

Frame 41: 1808 bytes on wire (14464 bits), 1808 bytes captured (14464 bits) on interface unknown, id 0
Ethernet II, Src: Private_01:01:01 (01:01:01:01:01:01), Dst: Broadcast (ff:ff:ff:ff:ff:ff)
    Destination: Broadcast (ff:ff:ff:ff:ff:ff)
        .... ..1. .... .... .... .... = LG bit: Locally administered address (this is NOT the factory default)
        .... ...1 .... .... .... .... = IG bit: Group address (multicast/broadcast)
    Source: Private_01:01:01 (01:01:01:01:01:01)
        .... ..0. .... .... .... .... = LG bit: Globally unique address (factory default)
        .... ...1 .... .... .... .... = IG bit: Group address (multicast/broadcast)
        [Expert Info (Warning/Protocol): Source MAC must not be a group address: IEEE 802.3-2002, Section 3.2.3(b)]
            [Source MAC must not be a group address: IEEE 802.3-2002, Section 3.2.3(b)]
            [Severity level: Warning]
            [Group: Protocol]
    Type: IPv4 (0x0800)
    [Stream index: 0]
Internet Protocol Version 4, Src: 17.237.161.130 (17.237.161.130), Dst: 50-196-26-177-static.hfc.comcastbusiness.net (50.196.26.177)
    0100 .... = Version: 4
    .... 1001 = Header Length: 36 bytes (9)
    Differentiated Services Field: 0x9b (DSCP: AF43, ECN: CE)
        1001 10.. = Differentiated Services Codepoint: Assured Forwarding 43 (38)
        .... ..11 = Explicit Congestion Notification: Congestion Experienced (3)
    Total Length: 28200
        [Expert Info (Error/Protocol): IPv4 total length exceeds packet length (1794 bytes)]
            [IPv4 total length exceeds packet length (1794 bytes)]
            [Severity level: Error]
            [Group: Protocol]
    Identification: 0x4d87 (19847)
    111. .... = Flags: 0x7, Reserved bit, Don't fragment, More fragments
    ...0 0001 1111 1101 = Fragment Offset: 4072
    Time to Live: 37
    Protocol: Layer 2 Tunneling (115)
    Header Checksum: 0x0011 incorrect, should be 0x1878(may be caused by "IP checksum offload"?)
        [Expert Info (Error/Checksum): Bad checksum [should be 0x1878]]
            [Bad checksum [should be 0x1878]]
            [Severity level: Error]
            [Group: Checksum]
    [Header checksum status: Bad]
    [Calculated Checksum: 0x1878]
    Source Address: 17.237.161.130 (17.237.161.130)
    Destination Address: 50-196-26-177-static.hfc.comcastbusiness.net (50.196.26.177)
    Options: (16 bytes)
    [Stream index: 0]
Data (1758 bytes)
    Data […]: 2445257300eac335fe7a1f7312015beb25730041a12d28bd22db9ecf41c7a203b52d1bd2b90ac17c213f9030d88dea2573009c2573001f257300ad70443daed20cf462e7e1a3f1a42573001b17d7629bce4b38416365fea5cefb0b19e27f8f496217024030e7fe257300bba1d937e44bb54
    [Length: 1758]

Thanks, Devaki

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