How can I forward/communicate between two NIC with two subnets on same Server Windows.

BornnConfused 1 Reputation point

I have a Windows Server.
I have two NIC

  1. NIC1 Ethernet which is connected to office Network and also to internet. IP address
  2. NIC2 one LOOPBack interface which i created using hdwwiz utility.

my Loopback interface is connected/used by GNS3 Server and GNS3 is configured with Routers and Routing Protocol is configured.

I have ping from Loopback interface IP to the Routes in the GNS3 and from routers to the IP

But i cannot ping the IP from the Routers
also from other Computers in network to the Routers.

I want other Servers/computers in network to ping/reach the Routers

To do this, i think i need to forward the traffic from NIC1 to NIC2 and vicecersa
So when a computer in network pings the Routers or NIC2. Then the should reach the NIC1 and then the traffic frm NIC1 should be forwarded to NIC2

let me know how can we archive this ?


Windows Server
Windows Server
A family of Microsoft server operating systems that support enterprise-level management, data storage, applications, and communications.
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Windows 10 Network
Windows 10: A Microsoft operating system that runs on personal computers and tablets.Network: A group of devices that communicate either wirelessly or via a physical connection.
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  1. Dave Patrick 352.4K Reputation points MVP

    Simplest solution is to use layer 3 hardware for this purpose. If you must use windows then one option is to stand up a dedicated virtual machine as a router.

    --please don't forget to upvote and Accept as answer if the reply is helpful--

  2. Limitless Technology 37,771 Reputation points

    Hello @BornnConfused

    in addition some useful information:


    --If the the reply is helpful, please Upvote and Accept as answer--