configuring SLIP on Suns

[dms at ai.mit.edu]

I've been testing dialup slip on Suns.  While basic slip works, I've had
trouble getting routing to work right.

Here is the configuration: 

--------------------------------------------->>>> rest of the world
		     |
		128.52.10.1
  		   host A
		128.52.11.1
                     |
		     |  <==== via SLIP
		     |
	        128.52.11.2
                   host B   (dialup host)
		128.52.12.2
		     |
----------------------------------------------

I'm running gated with "RIP yes" on host A.  When host B dials up, it
invokes, on host A:

	sliplogin 128.52.11.2 128.52.11.1 255.255.255.0

Then, on host B (directed to correct tty line):

	sliplogin 128.52.11.1 128.52.11.2 255.255.255.0

(BTW:  Tip with slip support is core dumping on me.  I've got the copy
from the "slipware" distribution.)

This starts up slip fine, allowing host A and B to talk to each other
using 128.52.11 addresses.  If I do the following on host B:

	route add 0 128.52.11.1 1

to setup a default route, host B can now talk to host A via the
128.52.10.1 address as well.  However, host B cannot talk to the "rest of
the world" because gated on host A isn't pushing the new slip route
around.

A couple of questions:

1) I'm using net 128.52.11 as a slip connection network, with only two
hosts on it.  Is this the right way to do it?  I may have additional
machines on 128.52.12, on the dialup end, by the way.

2) On host A a point-to-point route is installed, basically of the form
that you'd get from "route add 128.52.11.2 128.52.11.1 1".  Should this
point-to-point route get broadcast from 128.52.10.1 to the "rest of the
world".  I'd think this should done by gated.

3) Gated by default only sends out RIP information if more than one
interface is present.  When I first boot host A, it only has the
128.52.10.1 interface.  Thus, gated doesn't send routes out.  When I add
the slip0 interface to 128.52.11.1, does gated start to send out routes?
Should I configure gated with a "RIP suppier" instead of a "RIP yes" entry
in gated.conf?

4) The slip net (128.52.11) doesn't support broadcast.  What should I do
to allow the gated on host B to send routes (for example, the route to
128.52.12) to the gated on host A?  It looked like gated supported
something to do this, but I couldn't get it to work.

Thanks for your help,

-Dave