Re: 3 nics in one box
From: Hobart Duncan (viking.ggh_at_verizon.net)
Date: Wed, 24 Nov 2004 20:27:14 GMT
On Wed, 24 Nov 2004 19:17:45 GMT, "/dev/null" <dev.null@BeginThread.com> wrote:
>--One problem you will have is that each nic gets the same network and gateway
>--which will play with your routing tables. Nothing you can't remedy with
>--route -del, but it's still a pain and shows the clunky-ness of your
I don't think you are seeing the difference between the start of my project and
the final setup.
First, I start with a box with 3 nics with 3 ips (true same gateway and
subnet.) I get the system up and running and online.
Second, I build three new boxes, each with a single nic and an ip that relates
to the ips I used in the first step.
Third, I put the three new boxes online and test.... the first box, with the
three nics, will be off-line and kept up to date daily with the files added or
deleted. A manual process at first, but will be automated into my private
Into the linux boxes and my own private network via a linksys router and a
separate ip (one of the four), is a SWITCH that connects to the DSL modem. To
the best of my knowledge, a switch has, is, and will always be MAC to MAC
addressing and not like a HUB that will just split. I can't foresee a problem
with a routing table...... The only box that will have total public access
will be the Web server. The other two boxes will be email, ftp, dns, and any
other service I wish to keep more (the MOST) security.
| Modem |
| Switch |
\/ \/ \/ \/
_________ ______ ______ ______
| WRT54G | | Box 1 | | Box 2 | | Box 3 |
Private lan WWW Email ftp/dns ..... etc.
The routing table for each box is a separate and distinct connection associated
with that NIC within that box. Box 3 has the DNS (Bind) that will define the
boxes via the IP and the associated service it will supply. My linksys router
is not connected to the three boxes other than sharing a switch. It will have
it's own security via the cool hacks provided by the linksys linux hackers
around the world. (My secondary DNS will be provided by one of my friends DNS
server and I will provide the same for him acting as his secondary.)
Anyway, this is the final configuration..... my concern was the first step,
any foreseeable problems with the single box with 3 nics? Won't the routing
table for each nic be the same as if they were in separate boxes, being that
they each have their own MAC address?
What am I not seeing?