Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!uunet!saxony!pesch
From: pesch@pa.reuter.COM (Roland Pesch)
Newsgroups: comp.dcom.sys.cisco
Subject: routing TCP/IP to IBM MVS, over X.25, w/CISCO router
Summary: Can this routing be accomplished with CISCO router only at far end?
Keywords: IBM MVS, CISCO, TCP/IP, X.25
Message-ID: <274@saxony.pa.reuter.COM>
Date: 11 Jul 90 23:59:59 GMT
Organization: Reuter:file Inc  (A Reuter Company) Palo Alto, CA
Lines: 28


One of my colleagues, who currently has no access to the Net, is having
difficulty getting consistent answers from CISCO and IBM sales people to
the following question---perhaps the requisite knowledge is somewhere on
the Net?

(from Mike Symes, Reuters Toronto:)
  We are proposing to connect an IBM MVS system to some LAN-based hosts
  that run TCP/IP.  The LAN's are accessible via an X.25 network, to which
  they are connected by means of a CISCO router.  Further, we are
  considering connecting the MVS machine to the X.25 network by a 37xx
  running NPSI. 


             BMC              X.25     X.25           Ethernet

  MVS: TCP/IP---37xx: NCP/NPSI---- net ----CISCO router-------other host: TCP/IP


  We would like to know the following: will IBM's TCP/IP for MVS use the same
  method as the CISCO router for transporting IP datagrams over X.25 virtual
  calls? In other words, will the scheme work, or is it necessary to have a
  mirror CISCO router at the mainframe end, connected to the mainframe in some
  other way?


/Roland Pesch       (pesch@pa.reuter.com)
Reuter:file Inc  425 Sherman Ave Ste 200   Palo Alto CA  94306