Ken you must be tired... there's probably heaps of people out there with
second hand hubs & switches who can help Nicholas out :-) (heck I've got a
spare 10Mb hub I'd part with for $20 neg.) Routing & subnets is just
making a simple LAN difficult here.
Nicholas, you're going to have to manually set the IP addresses on each
ethernet card in each operating system. To send packets from computer A to
computer C via computer B is called routing, computer B will need routing
enabled. If you persist without the hub setup IP's something like this
perhaps.
[computer A] 192.168.2.3 (default route to 192.168.2.1)
|
| crossover cable
|
| 192.168.2.1 eth0
[computer B]
| 192.168.2.2 eth1
|
| crossover cable
|
[computer C] 192.168.2.4 (default route to 192.168.2.2)
Assuming computer B is linux turn on routing in the file /etc/sysctl.conf
(on redhat at least).. otherwise add
echo 1 >/proc/sys/net/ipv4/ip_forward
to the /etc/rc.d/rc.local file for example.
Hey, there might even be an "enable routing" option in some gui
somewhere... I don't know, I seem to find the gui ways last.
There's probably a way to do it in Windows too, don't ask here ;-)
As for sharing the net... lets try that another time ;-)
On Thu, 18 Dec 2003, Ken Foskey wrote:
> Make sure you have subnets 1 & 2. for example:
>
> 192.168.0.X is the laptop side
> 192.168.1.X is the Dual boot side.
>
> netmask would be 255.255.255.0
>
> Make the a) machine .1 on both those networks and make the gateway
> address the .1 address for that network.
>
> If you want to cross across you need to add a route to allow b) talk to
> c) and you also need to enable forwarding.
>
> >From a strictly security point of view the a) box has a lot on it. This
> is a risk and it stops being a proper secure gateway.
>
> The other thing you may want is masquerade as well. This "hides" your
> private address from the Internet.
>
>
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