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i am trying to get or put with TFTP protocol. I set the TFPT server and everything worked but stopped working lately. I am able to connect to the server but am getting an error "unknown option -?" when inspecting the Syslog. When running Tcpdump i see the message is "19 RRQ filename netascii" i have looked for a couple of days in the net but with no success.

user2095970
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1 Answers1

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from RFC 1350

      opcode  operation
        1     Read request (RRQ)
        2     Write request (WRQ)
        3     Data (DATA)
        4     Acknowledgment (ACK)
        5     Error (ERROR)

        2 bytes     string    1 byte     string   1 byte
        ------------------------------------------------
       | Opcode |  Filename  |   0  |    Mode    |   0  |
        ------------------------------------------------

This is what you have to see in your RRQ or WRQ packet

Pat
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