Re: (PM) new class C repost

Michael J. Hartwick (hartwick@primeline.net)
Tue, 7 Dec 1999 08:44:37 -0500 (EST)

On Mon, 6 Dec 1999 keith@mail.telestream.com wrote:

> ___
> | | 205.238.4.0/24 ----- Routing fine
> --- OR |----- 205.238.16.0/27 ----- Can't figure how to do it.
> w0 |___|ether0

Looks like you want them both on your ethernet. I don't recall there
being a 3.8+ version of ComOS available for the OR's so you can
install that and run ethernet sub-interfaces.

> To do the /24 all I had to do was add route 205.238.4.0 205.238.4.1 1

This should have been unnecessary as the OR-HS knows that 205.238.4.0
is local to the ethernet port and should have added it automagically.

> the .4.1 being the ether0 on the OR. What would the add route command
> have to be to get the .16 to be something like this
>
> add route 205.238.16.32/27 205.238.4.1 1
> add route 205.238.16.64/27 205.238.4.1 1
> etc etc.

Short answer: You can't without having a device with an interface on
all of the networks.

Longer answer: You need to have an interface on a network in order to
do what I think you want. Now this can be sub-interfaces (secondary's
on Cisco, ip aliases on Linux) or "real" interfaces. However, in
ComOS the ethernet sub-interfaces came in version 3.8 something I
believe, which wasn't available for the OR family last time I checked.

Now, what is it that you are trying to accomplish? It may be able to
be done another way. For example, if you wanted 205.238.16.32/27 to
be the assigned address pool of a PM2 with the IP of 205.238.4.28
(just picked this out of the blue) then what you would want is:
add route 205.238.16.32/27 205.238.4.28 2
or use OSPF to do it dynamically.

Since I don't know exactly what you are trying to do I can only
speculate. :)

Michael

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Michael J. Hartwick, VE3SLQ hartwick@primeline.net
Prime-Line Communications (519) 396-8300
Kincardine, ON, CA http://www.primeline.net/primeline
For technical support please email support@primeline.net.
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