Means i have two networks consisting of 192.168.1.1 & 192.168.2.1 how to connect both the LAN.?

Answer 1

Since these are both local addresses, you mean you have two computer addresses on your local machine that you would like to use to create network. Why not use the Network Setup wizard in Control Panel?

Answer 2

Your question is very confusing. Are your IP addresses set up to be automatically assigned on both networks? Do you have a DHCP server in each network? Or are you assigning static IP addresses? What is the subnet mask for each network? 192.168.x.x is defined as a class B (if I remember my TCP/IP stuff correctly) with a subnet mask of 255.255.0.0, an internal network with a possible range of 64K (65535) machines, minus a few dedicated addresses. All 192.168.x.x packets do not propagate. So, why do you have 2 192.168 internal networks? Do you really have that many machines, more than 64K? Or did you subdivide and make make class C address space by using a subnet mask of 255.255.255.0 which would give you a possible 255 networks of 255 machines each instead of 1 class B network of 64K machines, which makes no sense? Why not simply dump the 2nd DHCP server on the second network and hook all the machines to the same hub and let your first DHCP server handle the lot? A router, if it is a true router, will not work to join the networks because routers do not forward 192.168.x.x packets, so the networks can not communicate through a router. Likewise a simple bridge is out as well since it is likely your subnet mask on each network is 255.255.0.0 which means you could have duplicated addresses. The answer to your question is to do your homework on TCP/IP assignments and learn how these things are assigned to machines connected to a network. From your question phrasing and IP addresses you gave, you have a misconfigured class B network that is not following the rules.

Answer 3

With multiple network cards you can configure to connect to both networks. I'm guessing you are looking for a way to use both so you can improve network speed but it doesn't work quite like that. If your applications allow you to specify which network interface to use, you may be able to use one application on the first card and a separate on the other card.

Take a look at network gateways to find more information on dual network configurations.

Answer 4

You need a router. Connect each network to a separate port on the router and set up routing between those ports.

Bert

Answer 5

Use Ethernet cables, to plug into the router, the router can handle both.