Subject: Re: routing
To: Matthias Scheler <>
From: Dustin Sallings <>
List: current-users
Date: 09/09/1997 23:18:15
On 9 Sep 1997, Matthias Scheler wrote:

# What is so bad about it? Why must ethernet be limited to broadcast mode? 
# Was it burned into stone somewhere? 
# There are no double IP addresses is this setup, no wrong routes,
# nothing.  Image the link between the local router and the NetBSD box to
# be a serial line with slip on it. What's bad about this setup now?
# Nothing! So what can be bad about replacing the slip line with an
# ethernet? Please explain! 

	Nothing, when done properly, however, I don't quite get how you're
doing it in this setup.  If you use a normal point to point mask (/30) 
then you're using four addresses that meet on the proper boundry.  I
suppose a /31 is possible, but doesn't make a lot of sense.  PPP
interfaces often will use a /32, but I've never been able to get a Cisco
to accept that for a netmask. 

	Anyway, proxy-arp does seem to be the answer.

# > Just because Linux allows for *really bad* network design, you
# > shouldn't expect everything to. 
# It's not only Linux which can handle this. The Cisco router wouldn't
# have a problem with that setup either.
# > I would either ask the Uni to do properly assign an address block,
# Not possible.
# > or use a NAT in there somewhere.
# NAT will break several services.
# -- 
# Matthias Scheler                      

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