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- Path: sparky!uunet!elroy.jpl.nasa.gov!usc!news.service.uci.edu!unogate!mvb.saic.com!tgv.com!info-multinet
- Date: 10 SEP 92 17:56:20 GMT
- Newsgroups: vmsnet.networks.tcp-ip.multinet
- X-Return-path: <info-multinet-relay@TGV.COM>
- X-RFC822-From: adelman (Kenneth Adelman) @ TGV.COM
- From: adelman@TGV.COM
- Subject: Re: DECwindows over IP problem and an FDDI problem.
- Organization: The INFO-MULTINET Community
- Message-ID: <42E00D2910SEP92175620@TGV.COM>
- Nntp-Posting-Host: Mvb.Saic.Com
- Lines: 43
-
- > 1. The first problem is related to the opening of a DECwindows window
- > over TCP/IP on a Multinet host. We get the following error
- > message. I can't find it neither in the Multinet manual, nor in
- > the DECwindows User Guide.
-
- >> dectermport failed to find language, XOpenDisplay("") returned NULL
- >> %DECW-F-CANT_OPEN_DISPL, Can't open display
-
- This is a DECwindows error; unfortunately the application doesn't
- tell you anything except that there was one. The best way to debug
- these problems is to try:
- $ multinet x11debug
- which will make its own connection to the display, but give you more
- information about the failure.
-
- > 2. On our Multinet host we've both an ethernet and an FDDI interface.
- > The default route is via ethernet. Changing the default route to
- > FDDI gives me a lot of unreachable systems on the ehternet behind
- > our cisco. Hope someone can tell me how to make the FDDI the
- > default route?
-
- Assuming that you're using different network or subnetwork numbers
- for our FDDI and Ethernet, is the cisco connected to both as an IP
- gateway? If so, then the default route of the cisco should get you to
- the machines behind the Ethernet, assuming that the cisco itself has
- routes to those machines (and that they have routes throughthe cisco
- to the FDDI network). If the cisco is not connected to both, then
- you'll need to put specific network or subnetwork routes in your
- tables to point at the machines which are behind the Ethernet, while
- leaving the default route at the cisco.
-
- > Another problem is, that the fddi interface is not reachable from
- > other systems. However, if I first do a ping from the multinet
- > host towards such a system, than that system (if it's on fddi) is
- > placed in the ARP table, and then the fddi interface *is*
- > reachable from that system. This trick doesn't work from an
- > ethernet host, because the ethernet cisco interface is the only
- > (default) route in the ARP table. What should I do to make the
- > FDDI interface available towards any system on our LAN?
-
- Not reachable from other systems on the FDDI? I'm confused.
-
- Ken
-