Path: utzoo!mnetor!uunet!husc6!cfa!wyatt
From: wyatt@cfa.harvard.EDU (Bill Wyatt)
Newsgroups: comp.dcom.lans
Subject: Re: LAN hardware & software advice
Message-ID: <956@cfa.cfa.harvard.EDU>
Date: 30 Mar 88 21:08:03 GMT
Organization: Harvard-Smithsonian Ctr. for Astrophysics
Lines: 48


>Q:	I would like to run Ethernet between the microVAX and the
>	11/750. Which ethernet controller should i buy for the uVAX?
>	I already have a DEUNA on the 750 but might trade it in for
>	a DELUA.
>A:	GO with the DELUA, there was a bug with DEUNA's in 750's that
>	they sunk so much power when they energized the transciever that
>	DCLO would occur on the UNIBUS crashing the machine.

While I agree DELUAs are better, we've never had a problem with our 
DEUNA on an 11/750. I suggest keeping the DEUNA (if it's working), and
spending your money elsewhere.

>Q:	How can I set things up so that folks on the uVAX logon to the
>	UNIX machine and vice-versa? I think I would like to get TCP/IP
>	and all the rlogin/telnet/ftp,etc. stuff for the uVAX. Which is the
>	best (or recommended) options to buy?
>	Will the uVAX-II be able to support all this? Will VMS block
>	ethernet logins?
>A:	Answer, best bet in a mixed environment is to run TCP/IP (of
>	course, I'm a IP bigot).  You can get TCP/IP for the VAX from
>	a couple of commercial sources.  We deal with Wollengong.  The
>	price is around $6000 list for a multiuser VMS uVAX, but you
>	may be able to convince them to give them a discount.  They have
>	a very liberal discount for Universities now.   This will allow
>	full connectivity for login/telnet between the two machines.

There are also TCP processor boards to plug in, but be careful if you
want to attach TCP/IP terminal servers to them. There can be some gotchas.
Wollengong software is known to have gotchas, also.

>	You could get DECNET for the UNIX machine, but this is not such
>	a good solution.

I don't necessarily agree. The Ultrix/DECnet gatewaying capability is
wonderful. Users can (nearly) transparently telnet and ftp through
the Ultrix machine in either direction, without even having an account
on the Ultrix Vax. Also, you don't have to have TCP on each VMS machine;
users can log in to the Ultrix machine and login directly to any DECnet 
host. I agree some TCP/IP capabililty on the VMS machines is required,
though.
-- 

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