FTP to VMS systems

[Dolata]

I have a 3130, 2400T, and a mVAX II running ULTRIX, and a mVAX II running VMS.
(And a headache!)  All of these machines are hanging on an ethernet, and all
have FTP and TELNET.  I can telnet between all of the machines.  But I
cannot FTP between all of them.  The possible connections are;

	ULTRIX <-> IRIS (both)
	ULTRIX <-> VMS
	VMS -----> IRIS
	IRIS -//-> VMS

When I try to 'open vms' on the IRIS's ftp,  it gives me a "segmentation
violation,  core dumped" message.   However,  if I run ftp on the VMS
system, and 'open iris1' or 'open iris2' it works well.

Any hints, anecdotes, fixes ???
Dan