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To: moos@degnet.baynet.de
cc: FreeBSD-questions <questions@freebsd.org>,
        freebsd-hackers <freebsd-hackers@freebsd.org>,
        danny@panda.hilink.com.au
Subject: Re: Is this network possible with FreeBSD ??? 
In-reply-to: Your message of "Thu, 31 Oct 1996 02:33:17 PST."
             <3278806D.2FA6@degnet.baynet.de> 
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Date: Thu, 31 Oct 1996 10:44:02 PST
From: Bill Fenner <fenner@parc.xerox.com>
Message-Id: <96Oct31.104406pst.177529@crevenia.parc.xerox.com>
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In message <3278806D.2FA6@degnet.baynet.de>you write:
>                   +---------------+
>                   | FreeBSD-2.1.0 |
>                   |+-------------+|
>                   ||   NE 2000   ||
>                   ||   1.2.3.253 ||
>                   ||     ed1     ||
>                   ++------o------++
>                           |
>                           |
>                  ++-------o-------++
>                  ||    NE 2000    ||
>                  ||   1.2.3.36    ||
>                  ||     ed1       ||
>                  |+---------------+|
>                  |                 |
>                  | ISPA    +-------+  Telco-wire
>                  | Router  | ISDN  o------------o ISP  1.2.3.x
>                  |         +-------+                    net
>                  |                 |
>                  ++---------------++

This is a fairly strange network, but there are two things you can do:

1) Make the ISPA router proxy-arp for 1.2.3.* and just configure the FreeBSD 
machine "normally", with a /24 netmask for 1.2.3.* .
2) Give the FreeBSD machine host routes for 1.2.3.1, 1.2.3.2, ..., all
pointing to 1.2.3.36.  Something like
i=1
while [ $i -lt 255 ]; do
	if [ $i -ne 36 -and $i ne 253 ]; then
		route add -host 1.2.3.$i 1.2.3.36
	fi
	i=`expr $i + 1`
done

  Bill