Antamedia Bandwidth Manager
  
Network Topology 1

Introduction

Antamedia Bandwidth Manager should be installed on standard PC computer running Windows OS. We'll call this computer Server computer.

Computer with installed Bandwidth Manager have to be a gateway for other computers in the network. With such setup we are forcing all computers in network to redirect traffic through Bandwidth Manager which will control whether such traffic should be allowed or blocked.

Server need to have 2 network cards. One network card (NIC1) will accept traffic from your network and it will pass it to Bandwidth Manager. If traffic is allowed, traffic will be redirected to second network card (NIC2) which is connected to Internet. Between NIC2 and Internet you can use routers, bridges, modems (xDSL, ISDN, Cable...). NAT (Network Address Translation) should be disabled on all routers. With traffic we are assuming opening web pages or other type of communication with Internet.

Bandwidth Manager software doesn't require any specific hardware so you can use Access Points, Modems, Switch or Routers that you already own, and just configure network settings.

Network Setup

As a first step, we will share Internet connection on NIC 2. To remind you, this is a network card that connect server computer with Internet. We recommend using Windows Interent Connection Sharing (ICS) as it's easy to setup and it's free to use. Detailed steps are described here:

Once you finish this step, IP addresses will be changed. IP address of NIC2 is usually provided by your ISP and for example it might be 194.190.20.128

NIC1 (connects your network with server computer) will get IP address 192.168.0.1. This is default IP that Internet Connection Sharing sets to your network card. Note that you can change this IP address to some other IP address. Subnet mask is 255.255.255.0. Instead of default IP range 192.168.0.1 you can use for example 10.0.0.1.

In this network topology, server and all of client computers are connected to the switch and make local network. Client computers are configured to connect to the internet though the server computer with installed Bandwidth Manager. IP addresses assigned to the clients will be in the range from 192.168.0.11 to 192.168.0.xx and will have the same subnet mask as your server computer 255.255.255.0. Gateway should be 192.168.0.1 and DNS addresses are usually assigned by your ISP.



Basic network topology: few wired client computers, the switch and computer running Bandwidth Manager
which is connected to the Internet using router and ISDN line

How Does It Work ?

Once client computer user try to access to the internet, Bandwidth Manager will check this IP / MAC and since customer is not authenticated, it will block access to the internet. In the case autologin option is enabled, all user without authentication will be able to use internet withdefault limitations.

In combination with Antamedia Internet Caffe software, Bandwidth Manager allows fully automated process in your cyber cafe. Bandwidth manager disables internet access to the Internet Caffe client computers, preventing any program to access Internet resources. Online games, viruses, worms etc will not be able to generate undesired traffic.

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