PumpKIN is an open-source fully functional free TFTP server and TFTP client, which implements TFTP according to RFC1350. It also implements block size option, which allows transfer of files over 32MB, as well as transfer size and transfer timeout options described in RFC2348 and RFC2349.
The primary use of PumpKIN is maintenance of the network equipment (such as router firmware upgrade) that fetches images from TFTP server, although it is also useful for transferring files between parties involved in a conversation over ntalk connection using our T42 software (it also detects ntalk conversation held over now obsolete program 'wintalk').
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