network simulator

Question

I need to build a device emulator which can communicate over real IP address

I need to create as many instances I can for the device. With one IP and MAC address for each emulator instance

Can can any one guide me how this can be achieved?

Answer 1

Five or six years ago, I was stuck writing a network emulation layer for a PS2 game. I was told that all the classic behaviors of an internet connection had to be displayed; realistic loss characteristics, packet reordering, latency, rush-induced packet loss. Essentially, I was told to implement the internet in a couple weeks.

I suggested just bouncing all our game traffic off a remote echo server. When I was told that it was absolutely forbidden to send development traffic out over public wires, I simply created a server that everyone pointed their PS2 devkits at that would store every packet it received and send a doppleganger (full of an id for the original packet plus a bunch of random garbage to make it the same size) out to the echo servers I ran. When the doppleganger was received, I would pass the original packet on to its original destination.

Boom. Internet simulation with all the thorns in less than 8 hours.

UPDATE:

Given the success of the answer here, I reimplemented the game echo service a while back. It seemed that github might be a better place to stash it, so here it is: If it works for you, great! If not, let me know. I expect its current state to be shaky at best.

Answer 2

Virtual PC 2007

http://www.microsoft.com/downloads/details.aspx?FamilyID=04d26402-3199-48a3-afa2-2dc0b40a73b6&DisplayLang=en

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Virtual Machine Network Driver

http://www.microsoft.com/downloads/details.aspx?FamilyID=dc8332d6-565f-4a57-be8c-1d4718d3af65&displaylang=en

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VMware Player: Windows

http://www.vmware.com/products/player/