On Tue, Oct 03, 2000 at 01:31:30PM -0400, George Lenzer wrote:
> I am in the following predicament:
> I have a machine with one NIC and only one line run from a wiring
closet to that machine. The machine NOW needs to be accessible
to two separate logical networks: 10.0.1.0 and 192.168.1.0 Is
it possible to assign two IP addresses to eth0? One of my
associates wants to convert this machine from a Linux box running
Apache to a Win98 machine running Xitami. He said he can configure
NICs in Win98 to have two IPs simulataneously. Can Linux do this
as well?
First comment... Let's try splitting 500 character paragraphs into
multiple lines, please...
Second comment... Of course! That how we do virtual servers.
We've been doing this for AGES.
I have several colo servers with as many as 40-50 addresses
(on the same subnet) assigned to a single NIC card and act as different
virtual servers to incoming clients. That's a snap.
I also have some servers which act as proxy arp servers for
"punched out" subnets (subnets of subnets transported via VPN to another
location) that works well, too. The interface in question responds
to an entire block of addresses.
I also have several servers with "overlayed subnets" where there
are multiple, non-contiguous, subnets on the same physical net. That
sounds like what you are doing. That also works extremely well, you
just have to watch out for occasional routing problems and redirect
problems. I've seen a network crash in response to one someone copying
an entire CD from one of the overlayed subnets to a machine on the other
overlayed subnet (each machine only recognized one of the subnets) and the
poor router in the middle (that understood both subnets where on it's
same interface but refused to issue ICMP redirects) just beat itself to
death with collisions. But that's nothing to do with Linux, per se.
That's a potential problem with any overlayed subneting.
So the answer to your question is a resounding YES! But did it
answer what you really want to know? Based on your description, I'm not
sure, I know what you are trying to accomplish with the overlayed subnets
so I'm not sure if this helps or not...
> George Lenzer
> --
> ***********************************
> George H. Lenzer
> Owner - D.L. Media
> Lakewood, Ohio 44107
>
> --He who dies with the most toys
> --is still dead.
>
> ***********************************
> --
Mike
--
Michael H. Warfield | (770) 985-6132 | [EMAIL PROTECTED]
(The Mad Wizard) | (678) 463-0932 | http://www.wittsend.com/mhw/
NIC whois: MHW9 | An optimist believes we live in the best of all
PGP Key: 0xDF1DD471 | possible worlds. A pessimist is sure of it!
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