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Hello Brian ,
On Fri, 28 Jul 2000, Brian Klug wrote:
> Hi. Hope someone can help me with some route command examples.
> 1. I have four IP's assigned to my DSL modem, which has a 10BaseT
> connection.
> 2. I have several computers plugged into my 100BaseT hub.
> I have a Linux box with 2 network cards - one 10BT card for the DSL
> modem, and one 100BT card for my local LAN. I am currently doing IP
> MASQ and it works well.
> My question: I am only using one IP from the modem to my 10BT card -
> how can I assign/route/transfer/tunnel the other three IPs to the other
> pcs on the local net?
I know there isn't a way to route them using present technology .
The CableModem wants to see an actual Mac-Address in one of its
ports in order to forward traffic bound to the IP+Mac pair .
I have even tried using the same mac-address , which of course
failed miserably . I beleive (I'd have to check specs) that each
port on the CableModem must see a unique Mac-Address in order to
assign the IP to it .
> If my DSL modem had a 100BT connection, I could just plug that into the
> hub, and assign the three IPs directly to the machines. But that is not
> the case -- I will have to do some strange routing though my Linux box.
> Is it possible to say something like
Now There 'Might' be a way to cheat using one box but multiple
ether port with unique mac-addresses . Ie: insert 4 nic cards
into your router/nat machine & then connect all four to the
cablemodem & then do the following .
> to Linux: "Any connections coming in on those three IPs,
> 64.50.146.19,64.50.146.20,64.50.146.21, please route that to
> 192.168.1.2, 192.168.1.3, and 192.168.1.4, respectively."
> to windows 98 box (192.168.1.2): "Please pretend you are 64.50.146.19,
> you will get this through 192.168.1.1).
> to windows 98 box (192.168.1.3): "Please pretend you are 64.50.146.20,
> you will get this through 192.168.1.1).
> to windows 98 box (192.168.1.4): "Please pretend you are 64.50.146.21,
> you will get this through 192.168.1.1).
> So this is purely a routing issue. I can't just plug everything into my
> 10/100 hub. That would be to easy. I want to do this without any extra
> hardware, too.
Not -JUST- a routing issue as the CableModem has hardware issues
and must see an uniques mac-address in each port in order to
assign an IP address to it .
Hope this healp , JimL
+----------------------------------------------------------------+
| James W. Laferriere | System Techniques | Give me VMS |
| Network Engineer | 25416 22nd So | Give me Linux |
| [EMAIL PROTECTED] | DesMoines WA 98198 | only on AXP |
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