Routing problem with two Windows Server 2003

20 pts.
Tags:
Broadband
Microsoft Windows Server 2003
Network routers
Routers
Routing protocols
Subnet Setup
I need some help here please Scenario: Devices: Three routers and one hub; 2 servers 2003 (one with two NICs) in its own forest; and 3 Windows clients. Each router is on a different subnet (ISP and two private subnets). Note: The ISP is using broadband router, and the two private networks is using Linksys Wireless router. IP addressing: Networks ---> 28.0.0.0 255.255.255.224         Static (ISP)                                          192.168.3.0 255.255.255.255.0  Linksys                                          192.168.4.0 255.255.255.255.0  Linksys All devices can access the Internet, but cannot access resources from the other networks (i.e. \192.168.3.78 suppose to access the share folders of that host, but in my case cannot access share folder from different subnets). In addition, cannot ping host in different subnet. I manually updated the host files of each machine and turn off firewall, but still have no luck. I am getting required time out message when I ping. However, my goal is to have public users (28.0.0.0 network and other networks) to access resources from both of my servers on the 192.x.x.x networks (i.e. website or email). Each of the server is on a separate private network as a stand-alone domain controller.                                          In addition, I want people to be able to access resources from my servers on the private networks as an ultimate goal (i.e. Users from Africa can access my website). How do I route traffic from the Internet to these secure devices with the equipments mentioned above? I thanks you in advance for the time you take to read and response to my question. regards, Spencer

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Hi Spencer,

I think this might be an easy one.

When we have different networks (read subnets in your scenario) we need to provide a way from which each network can reach or know how to reach the other networks.
The problem you are facing is that if you are in a host in the 192.168.3.X subnet neither the host or the router in this subnet know how to route the traffic to let’s say 192.168.4.X.

You say that your router’s are Linksys but you did not mention which model.
So the basic concept here is:

In each router you need to configure a second network address of the other subnet and make a persistent route to that subnet via that address. In a cisco scenario you will create a sub-interface with a network address of the other subnet. After creating this new network address and the persistent route to the other subnet you will be ready to go (in this way). Of course you will have to do exactly the same thing on the other router to achieve the same functionality in the other way around.

Let me know if you have further questions.
HTH

Luís

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The dual-router, dual-IP scenario listed above MAY work, but there is yet a simpler one – if any of your routers support more than one VLAN/subnet, then set up one of your routers with both LANs on it, and ensure that inter-vlan routing is enabled (if the devices you have support it) and cable both of your servers into the one router…

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