On 02/11/2011 11:37 AM, Jason Hsu wrote:
I'm in the process of setting up an old computer as a firewall and server. It
needs to connect to my DSL modem AND my main computer. However, this old
computer (like every other computer I've had) only has one Ethernet port. I
know this is old hat for many of you, but I've never done this before.
What do I need to connect my firewall/server computer to a DSL modem AND
another computer? I do use an Ethernet cross cable to connect my main desktop
computer to my laptop when I need to transfer files. Since the Ethernet port
of my laptop no longer works, I have to use a USB-to-Ethernet adapter.
If I use a regular Ethernet cable to connect the firewall/server computer to
the DSL modem, would it work to use an Ethernet cross-cable and USB-to-Ethernet
adapters to provide the connection to my main computer? Are there USB-to-USB
cross cables?
I use:
1. IpCop Linux (purpose-built firewall, NAT router, etc., distribution):
http://www.ipcop.org/
2. An old Dell P4, 1.3GHz, 128 MB, 20 GB IDE box with on-board fast
Ethernet (Internet/ 'red' subnet) and two Gigabit PCI adapters (LAN/
'green' subnet and DMZ/ 'orange' subnet').
3. Netgear fast Ethernet (red) and Gigabit (green and orange) switches
with normal/ cross-over auto-sensing.
4. Standard Cat. 5e cables.
For testing cables:
http://www.idealindustries.com/prodDetail.do?prodId=62-200
To make cables:
bulk category 5e riser cable (1000 ft. box)
http://www.idealindustries.com/prodDetail.do?prodId=85-396
http://www.idealindustries.com/prodDetail.do?prodId=30-696
HTH,
David
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