Skip site navigation (1)Skip section navigation (2)
Date:      Tue, 2 Oct 2001 09:52:06 +0100 (BST)
From:      Andrew Gordon <arg-bsd@arg1.demon.co.uk>
To:        Barney Wolff <barney@databus.com>
Cc:        "Gary W. Swearingen" <swear@blarg.net>, <freebsd-stable@FreeBSD.ORG>
Subject:   Re: 127/8 continued
Message-ID:  <20011002094003.Q70353-100000@server.arg.sj.co.uk>
In-Reply-To: <20010926190732.A80636@tp.databus.com>

next in thread | previous in thread | raw e-mail | index | archive | help

On Wed, 26 Sep 2001, Barney Wolff wrote:

> At first glance, you can't do what you want with only a /29.
> Every "link" requires a /30, because the first and last addresses
> cannot be assigned to interfaces.  Also, I rather doubt that you
> can get an Ethernet to work as a point-to-point link because the
> driver needs to arp.  (Yes of course the crossover cables work -
> that's not the point.)

What I do nowadays to solve this kind of problem is to use gif(4) tunnels
to create point-to-point links between all machines that need to have
'public' addresses and the firewall/router.

All the ethernets can then have 10.* addresses, with the scarce 'real'
addresses only allocated to the gif interfaces on the machines that need
them.

There's obviously a slight performance penalty, but typically not
noticeable in the normal case where your internal (10 or 100Mbit)
ethernets are faster than the connection to the ISP.


To Unsubscribe: send mail to majordomo@FreeBSD.org
with "unsubscribe freebsd-stable" in the body of the message




Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20011002094003.Q70353-100000>