sorry for the long time...
The logfile shows a file transmission with zmodem (terraterm is receiving). The logfile is cutted only the last lines are interesting. At line 565 terraterm is sending a ZACK with the next file position (B039d170000)
Type 3 (ZACK), filepos: 0x179d
At line 570 terraterm is receiving a binary header:
2A 18 2A 18 41 0A 18 DD 17 00 00 18 6C 44
ZPAD, ZDLE, ZBIN, ZRPOS (Type 9), ZDLE, DD 17 00 00 18 ZRUB0 44
How we can see the filepos. of 9d17 is converted to ZDLE, DD, 17 (0x9d ^ 0x40 => 0xDD) works correct, but there is no decoding of ZRUB0 and the checksum goes fail. Terraterm is sending a ZRPOS header.