Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Path: utzoo!mnetor!seismo!rutgers!sri-unix!hplabs!ucbvax!YALE.ARPA!LEICHTER-JERRY From: LEICHTER-JERRY@YALE.ARPA Newsgroups: mod.computers.vax Subject: Re: Ethernet promiscuious mode (VAX/VMS) Message-ID: <8611241538.AA10222@ucbvax.Berkeley.EDU> Date: Mon, 24-Nov-86 10:39:02 EST Article-I.D.: ucbvax.8611241538.AA10222 Posted: Mon Nov 24 10:39:02 1986 Date-Received: Mon, 24-Nov-86 23:31:15 EST Sender: daemon@ucbvax.BERKELEY.EDU Reply-To: Organization: The ARPA Internet Lines: 29 Approved: info-vax@sri-kl.arpa What is the best place to find out about the promiscuious mode on ETHERNET ? In particular, what's required to implement this from an application program (ie: a network monitor ...) Are their publications that deal with this type of application ? To get at promiscuous mode, you need to use the QIO interface to the DExNA (hmm, now {DExNA,DELUA}) driver. This is all documented in the I/O User's Reference Manual, Part II. The beast probably has the most complex interface of any VMS driver, and unfortunately the documentation is not the clearest around. There were some improvements with the VMS V4.4 doc set upgrade, so I would definitely start there, rather than with a V4.2 set. Expect to read through the things several times. I have a document called "Using the DEUNA/DEQNA Ethernet Interface Under VMS", by Ned Freed, Kevin Carosso and Dan Newman of the MATHLIB Project at Harvey Mudd College. (Kevin, at least, is no longer there; he writes to this list frequently from Hughes Aircraft.) The document appeared in a DECUS publica- tion within the last couple of years; sorry, I don't have the exact date. It's an excellent introduction. Unfortunately, it's too long (over 100 blocks) to mail. WARNING: Be aware of one restriction, which may not be obvious when you first read the documentation: An Ethernet interface in promiscuous mode cannot be shared. In particular, you will not be able to run DECnet through the device while you are using it in this mode. -- Jerry -------