Configuring IPNetRouter - A Real-Life ExampleHere's the nitty gritty on exactly how I have configured a 5 Mac network using IPNetRouter (hereafter IPNR) from Sustainable Softworks. A few disclaimers:
Use the schematic at the right to stay oriented as we take our tour.
(I suggest you read straight thru this page first, then use the links below as a reference index, or click on the image.)
This is the logical organization of the network interfaces. It should help you conceptualize what is happening as you read and set up IPNR with your own network.
The Gateway - A PowerMac 7200/90The gateway Mac is the Mac which connects to the Internet and which is running IPNR.
To the right is the TCP/IP control panel of this gateway Mac, configured as required to function with my MediaOne SurfBoard Modem. If it looks different from yours, it's because I set the user mode (command-U) to administration, locked the settings, then set it back to basic, so others couldn't accidently change them.
Below is the IPNR folder, stripped of all non-essentials.
What follows are the most important of the IPNR user interface windows, shown in conjunction with the matching configuration file. The configuration file is created by setting the information in the windows and then saving from within IPNR.
This is the Interfaces window of IPNR. This matches the bolded information from the config file below.
! IPNetRouter 1.4c3 PPC
This is the Routes window of IPNR. This matches the bolded information from the config file below.
! IPNetRouter 1.4c3 PPC
This is the Gateway window of IPNR. This matches the bolded information from the config file below.
There are other windows within IPNR, but they are not relevant to this discussion or my network.
One Slave (Client) - An iMac, Revision B
This is the TCP/IP control panel on the iMac.
As you gaze at the elegant simplicity of the MacOS, consider that this is the only configuration necessary. Compare this to what it takes to configure Windows95.
Another Slave - A PowerBook G3
This is the TCP/IP control panel of the PowerBook G3. I have several other configurations, such as for dialing my ISP via modem.
YA Slave - An old Mac LC using MacIP
This is the Mac TCP control panel on the Mac LC. The really useful stuff happens when you click "More...", and you must select "Manually" under "Obtain Address" before you can set the IP address in this window.
If you look carefully at the schematic, you'll see a modem connected to this machine. When the cable modem is not using the phone line, this trusty 11 year old box sits idly by, waiting to receive faxes.
<-- This is the resulting window when you click "More..." There are several things to set, in particular the Name Server addresses, and be sure to select a default. These should be the same as in the TCP/IP control panels of the Open Transport Macs. Notice that the gateway address (the MacIP interface on the gateway Mac) is on a different subnet from the clients connecting over TCP/IP Open Transport, and that it is on the same subnet as this LC. I don't know if it is necessary to be on separate subnets, but it is cleaner when conceptualizing your network.
And YA Slave - An old PowerBook 145b using MacIP
This is the Mac TCP control panel on the PowerBook 145b. It's essentially the same as the LC, just with a different IP address.
If you look carefully at the schematic, you'll see the LocalTalk connector going from the 145b to the PowerBook G3. This is an occasional connection I make for testing purposes. I set the TCP/IP control panel to AppleTalk(MacIP), and can use either an ethernet OR phoneNet connection for either TCP/IP OR MacIP. Obviously, TCP/IP by ethernet gives best performance.
<-- This is the "More..." window on the 145b, essentially similar to the Mac LC.
Connecting (almost) automaticallyThis is an HTML file which, when opened in Navigator, triggers a connection via the MediaOne Cable Modem. MediaOne provides a browser interface for connecting; when I studied the page source, I distilled it down to what you see. I've reproduced the HTML below as text for copying and pasting. This is only needed with one-way modems; since upgrading to a 2 way modem, I'm always connected.
If you, like me, have your own local home page, you can simply copy the HTML for the form, uncomment the submit tag, and add it to your home page. Then, when your browser starts and goes to your home page, a single click connects you.
Connecting (truly) automatically
What is shown here is part of an Applescript for automatic connections. It requires MacOS 8.5 or better. Do this:
The script will then do this:
If you ever change the name/location of your config file, or the name of your TCP/IP configuration, just recompile and run it again.
Here is the full script to copy and paste.
Requires MacOS 8.5 or better.
To the right is the Save window, for the benefit of those new to AppleScript and the Script Editor.
Be sure to check "Never show Startup Screen" and either save the file in the Scripts folder (in the System folder), or in the IPNR folder.
Closing ThoughtsMy experience has been that IPNR is very stable and, once configured, no further adjustments are needed. I would like to hear from anyone who puts this information to good use. My e-mail address is available on the IPNetRouter Teaching Index page. If you have questions/problems, posting to the NetTalk Mailing List is probably the best way to go.