Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!bbn!mit-eddie!uw-beaver!rice!sun-spots-request
From: linimon@killer.dallas.tx.us (Mark Linimon)
Newsgroups: comp.sys.sun
Subject: Re: Ethernet netmask on OS 3.x
Message-ID: <m0emAUF-0000YqC@killer.Dallas.TX.US>
Date: 9 Feb 89 07:00:05 GMT
References: <465@acheron.UUCP>
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Approved: Sun-Spots@rice.edu
Original-Date: Fri, 3 Feb 89 12:25 CST
X-Sun-Spots-Digest: Volume 7, Issue 147, message 4 of 13

In article <465@acheron.UUCP> you write:
>(this machine we have and wish to subnet...) has SunOS 3.x.

The x in 3.x is significant.  Before 3.4 I think you're hosed.

Here is how I did it on a test system on a Sun-3 running 4.0, for a
customer running a Sun-2 at SunOS 3.4(!).

Created file /etc/netmasks:
128.18.0.0<tab>255.255.248.0

In /etc/rc.boot:
I think we had
/etc/ifconfig le0 $hostname -trailers up netmask 255.255.248.0

but you probably already tried this.

I can't tell if the /etc/netmasks thing is a 4.0 feature or not, but I
think it is.  I do know that the man page for ifconfig as of 3.2 did not
list the netmask option.  It _is_ there as of 3.4 and 3.5, however.

Mark Linimon
Mizar, Inc.
uucp: {convex, killer, texsun}!mizarvme!linimon