Date   : Fri, 07 Jan 1983 23:44:00-EST
From   : Paul R. Grupp <GRUPP@mit-mc.arpa>
Subject: MIT-MC :LMODEM --> ARPA TCP

There is a problem using LMODEM on MIT-MC over an ARPAnet TCP connection
that prohibits LMODEM from sending COM (binary) files.  The problem appears
to be that when LMODEM sends an 8C hex it is not transmitted to the ARPAnet,
or the Net itself does not pass this character along to the local system.
LMODEM still works for ASCII files provided that the check-sum character
generated by any block doesn't end up being 8C hex.  LMODEM does still work
correctly if connected via ARPAnet NCP.