Actually, for a home system Having the 'dirty' network mixed with the
'clean' network is not that big of a deal. Assign multiple IP addresses
to the linux Card, such as one that is dhcp from the cable modem and one
that is private IP Space (Such as 192.168.0.254/24) and assign a different
private IP to each of the machines you want to Proxy thorugh the linux box
(such as 192.168.0.1/24 192.168.0.2/24 etc) and then set their gateway to
192.168.0.254 and they are ready to go. The private IP Space will NOT be
routed outside the Cable modem and it unroutable on the Inet anyways.
That said, with 10/100 ethernet cards at $30 a pop, you could easily do
the 'better' way of multiple ethernet cards to keep your internal network
clean.
Chris
On Tue, 23 Nov 1999, Charles Galpin wrote:
>You have it half right. You *could* use one card and a hub, but that would
>totally defeat a good portion of the usefulness of the linux box - being a
>firewall.
>
>So you want 2 nics.
>
>Then configure the linux box to do ip masquerading (also known as NAT) and
>as you already said, you just use it as a gateway from the win boxes. It
>is the ip masquerading that serves the same purpose as the proxy software
>under NT, but just does it in a way that is better/easier for a local lan
>to use.
>
>hth
>charles
>
>On Mon, 22 Nov 1999, Morse wrote:
>
>> I am setting up a 486 RH 6.1 to act as a gateway for my cable modem.
>> With a NT box I need to use two NICs ...one for the LAN and one for the
>> Cable modem and then use a proxy server.
>> But with Linux it is not a proxy...but a simple gateway address...
>>
>> Ok then do I need two NICs in the Linux box ...one for the modem and one
>> for the LAN ?
>> Or is there someway that I can just have one NIC for the LAN and plug the
>> cable modem into the hub without purchasing separate IP addresses for the
>> clients.
>
>
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