On Tue, Mar 21, 2000 at 01:32:54PM -0000, Antoniou, Stylianos wrote:
-> Hi there,
-> I have configured two PCs (Mandrake7.0 & RedHat6.1) in my college network.
-> When the network cards are connected to the network sockets everything is
-> fine, I have access to the www from both and when I ping from one to the
-> other I can get a connection.
-> # ping 155.198.91.168
-> PING 155.198.91.168 (155.198.91.168) from 155.198.91.82 : 56(84) bytes of
-> data.
-> 64 bytes from 155.198.91.168 icmp_seq=0 tt164 time=4.2ms
-> 64 bytes from 155.198.91.168 icmp_seq=0 tt164 time=4.2ms
-> ...
-> However, when I directly connect the two network cards with one cable, the
-> connection is not established, i.e.
-> # ping 155.198.91.168
-> PING 155.198.91.168 (155.198.91.168) 56 bytes of data.
->
-> and nothing else. What am I missing?
Possibly what you are missing is that you need a different kind of cable
to go directly from computer to computer.
To go from a computer to a hub (the normal sort of connection) you need a
cable that is straight through: pin 1 to pin 1, etc.
To go from computer to computer, or hub to hub, you need a cable which has
wires crossed over in it, i.e. any given pin is not necessarily wired to
its opposite number. This type of cable is known by various names,
including "hub to hub" and "crossover".
I would suggest you buy an eight port 10/100BT hub; they are only about
$100 these days. If you want to plug back into the college net, get an IP
address for each machine and plug the cable to the network switch into the
uplink port of your hub. Or look at IP masquerading.
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