home *** CD-ROM | disk | FTP | other *** search
- /*------------------------------------------------------------------------*/
- /* *
- * $Id: Realms 1.2 1994/12/06 14:08:47 heinz Exp $
- * */
- /*------------------------------------------------------------------------*/
-
- Using Envoy in Internetworked situations
- ----------------------------------------
-
- If you are using Envoy in a situation where machines are on different
- physical networks, you will need to configure NIPC to use Realms. If
- all of your machines are on the same network, you may ignore the rest
- of this file.
-
-
- What is a Realm?
- ----------------
-
- A realm is a collection of one or more physical networks that are
- set up to act as one logical network. This is done by having a
- single machine extend NIPC's inquiry capabilites to multiple
- physical networks.
-
- To accomplish this, the machine that is to be designated as a
- Realm Server has to be provided with a list of the network addresses
- of all networks within a Realm. Consider the diagram below.
-
-
- Backbone Network (135.7.10.0)
- ----------------+-------------------------------+-------------------
- | |
- | |
- +- Harley (135.7.11.2) |
- | |
- Kawasaki -+ +- Chrysler (135.7.12.3)
- | |
- +- Yamaha Pontiac -+
- | |
- Honda -+ +- Saturn
- | |
- | |
- | |
- | |
- | |
- | |
- | |
- | |
- Subnet (135.7.11.0) Subnet (135.7.12.0)
-
-
- On this network, a subnet mask of 255.255.255.0 is beging used, so
- that the first three bytes of the IP address are used to designate each
- physical network.
-
- If you wanted the two networks 135.7.11.0 and 135.7.12.0 to act as a
- single Realm named Vehicles, you would choose a machine to act as the
- Realm Server. This machine may be on either network, or may even be
- on a different network altogether, as long as all of the machines on
- both networks are able to communicate with it. For simplicity, we'll
- choose Harley to be the Realm Server.
-
- To configure this, you will first need to run the NIPC configuration
- utility on Harley. Swith to the Realm Configuration panel, where you
- will see two listview gadgets.
-
- What you would need to do is add two entries to the lefthand listview
- with the following information:
-
- Vehicles 135.7.11.0
- Vehicles 135.7.12.0
-
- "Vehicles" should be entered into the lefthand string gadget, and
- the network addresses should be entered into the rightand string
- hadget.
-
- Now, for each machine on both networks, you must run the NIPC configuration
- program, and on the first panel, set the Realm Name to "Vehicle" and the
- Realm Server Address to 135.7.11.2. (This should also be done on Harley).
-
- The Remote Realms listview is used for informing a Realm Server of Realms
- that are being controlled by other machines. For example, if you decided
- that you had a third network with an address of 135.7.13.0 and wanted to
- have it called "Boats", you could add an Entry to the Remote Realms listivew
- similar to the following:
-
- Boats 135.7.13.5
-
- Where 135.7.13.5 is the IP address of the machine that is controlling the
- Boats Realm. Likewise, that machine should have an entry for "Vehicles"
- in it's list of Remote Realms that looked like this:
-
- Vehicles 135.7.11.2
-
- Where 135.7.11.2 is the address of Harley.
-
-
-