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I have two different computers on is having ADSL internet coming from other company and i also have 2 LAN cxards on that computer.

The other computer is getting internet via USB dongle.

Now as they both are in same room . Is there any way that i access the each others resource without going through internet. I mean by joining some cable

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up vote 0 down vote accepted

Add extra NICs to other computer too and connect them using cross-over cable. Use private addressing, or on the interface through which the computers are connected to each other. You should easily get 100mbps to gigabit connectivity and Internet wont get used.

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I have extra NIC on computer 1 . but not on laptop . but i have router attached from LAN port of laptop. Can i join one of ethernet port of router with computer 1 LAN – John Nov 8 '10 at 16:27
Yes joining router port with ethernet port of computer 1 would allow them to connect. – Saurabh Barjatiya Nov 9 '10 at 11:13

Yes, it is possible to join the two computers with a cable. There are two things to think about:

  1. Type of Ethernet cable. You can connect the two computers with a crossover cable. This eliminates the need to use a switch or hub between the two machines. Note that some newer computers, including all Apple computers made within the past 4 years (possibly longer), do not require special crossover cables at all. They auto-detect when they are connected to another computer with a straight-through cable and perform the crossover automatically.

  2. IP address selection. You can set each computer to use a static RFC 1918 addresses (most typically 192.168.x.x), making sure that the two computers share a subnet. Or, if you leave DHCP enabled, the two computers are likely to come online with random APIPA addresses (169.254.x.x). Each computer will then have two IP addresses: the public one that it gets from its ISP (for internet access), and a private address for the dedicated link between the two computers.

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if your two computer are on a lan, there should be no reason they can't contact each other. Providing that they are on the same subnet and do not have conflicting IPs

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They are not on LAn , they have interent from different companies one on LAN port and other using USB mobile internet – John Nov 8 '10 at 6:27
The easiest method is to create a vpn connecting the two sites, imo. – Ablue Nov 8 '10 at 6:31
I think this is a candidate for migration to SuperUser. – Skyhawk Nov 8 '10 at 6:49
I was just thinking that, looking at the duplicate question here… – Ablue Nov 8 '10 at 6:50
if i make the VPN then will my main internet will still work and i can access the files on share. Basically on one computer i am downloading movies using unlimited internet with slow speed and on other computer i am doing my office work with fast but limited internet. i just to watch the movies downloaded from computer one on computer2. As they are in same room . I just want the speed should be good like on LAN.VPN will make it slow as it will happen through internet – John Nov 8 '10 at 7:25

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