Problems in datagram socket between 4.2 BSD

[HyeonJe Park]

We have connected two 4.2BSD with serial I/O routines from Harvard.
Operations using TCP(or stream socket) work well,
but operations using UDP(or datagram socket) - talk, rwho, dsh -
do not work.  If the size of data to receive is large,
the local machine seems not to get the data from 
the remote machine.  In case of the command rwho, 
it works well only when the remote machine has up to nine users.
It does not receive at all if more than nine users.
Does anyone out there have this problem?
Has someone fixed it?

			Park, Hyunje
			KAIST, Seoul Korea
			(UUCP: ...!hplabs!kaist!hjpark)