mdg@macs.UUCP (Mark Griffith) (04/12/90)
I appear to have the same or similar problem with an ULTRIX system running on a DEC MicroVAX II. I can send to this site without any problems, but cannot receive anything. From capturing all the data being sent, apparently this is what is happening: The header for each packet consists of the following: <DLE><packet_type><CRC><CRC><control_byte><XOR value of previous bytes> When receiving data from the host, it seems to drop the XOR byte and replace it with the first byte of the data. Even if I modify the code to receive a packet to allow for this, the CRC value being sent is still different than what my machine calculates. It also seems that I have this same problem with a Sun 2 workstation that I sometimes connect to. Trying to find out information about this is almost impossible to do. Calling every source I know of, including AT&T nets nothing. AT&T simply states that the protocol is proprietary. Any help in this matter would be creatly appreciated. I am writing a UUCP package for a different OS and this stonewall is in the way. BTW: I can send and receive from a UNIX Sys V Rel 2 machine without error. /\/\ark