Hallo,
mit Hilfe der PcapDotNET DLL soll ein Ping an ein Gerät versendet
werden.
Das Versenden und Empfangen von Ping Nachrichten funktioniert,
allerdings erhalte ich in Wireshark folgende Nachricht:
--> Destination unreachable
Die genauere Analyse der Nachrichten haben gezeigt, dass keine Daten im
ICMP Layer enthalten sind. Wie können die Daten in den ICMP Layer
integrieren?
1 | private static Packet BuildIcmpPacket()
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2 | {
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3 | EthernetLayer ethernetLayer =
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4 | new EthernetLayer
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5 | {
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6 | Source = new MacAddress("00:61:6E:43:80:90"),
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7 | Destination = new MacAddress("02:0F:69:FF:C0:00"),
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8 | EtherType = EthernetType.None, // Will be filled automatically.
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9 | };
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10 |
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11 | IpV4Layer ipV4Layer =
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12 | new IpV4Layer
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13 | {
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14 | Source = new IpV4Address("192.168.1.1"),
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15 | CurrentDestination = new IpV4Address("192.168.1.100"),
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16 | Fragmentation = IpV4Fragmentation.None,
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17 | HeaderChecksum = null, // Will be filled automatically.
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18 | Identification = 1,
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19 | Options = IpV4Options.None,
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20 | Protocol = null, // Will be filled automatically.
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21 | Ttl = 100,
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22 | TypeOfService = 0,
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23 | };
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24 |
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25 | IcmpEchoLayer icmpLayer =
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26 | new IcmpEchoLayer
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27 | {
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28 | Checksum = null, // Will be filled automatically.
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29 | Identifier = 1,
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30 | SequenceNumber = 800,
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31 | };
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32 |
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33 | PacketBuilder builder = new PacketBuilder(ethernetLayer, ipV4Layer, icmpLayer);
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34 |
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35 | return builder.Build(DateTime.Now);
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36 | }
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