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You have been appointed as a network designer and are required to design a wide area network (WAN) that will serve two insurance company offices located in Kuala Lumpur and Johor Bahru. The company server is located in Kuala Lumpur which is the headquarters. Each office will be served by a local area network (LAN) to facilitate communication and information sharing among the employees.
The company has been divided into four departments which are claims, finance, legal, and marketing, to aid in task or work division. Therefore, the LAN in each location is forced to be broken into various virtual area networks (VLAN) and each VLAN will represent a workstation in this case scenario. The networks will be divided into subnets to serve all the departments and at the same time merge them to work as one.
To facilitate communication between the two companies at different locations, a wide area network (WAN) is needed. It will merge the two separate LAN via the internetwork. Given that the internet is a public network, the wide-area network needs to be protected via firewalls. Therefore, each gateway to a local area network will be connected with a firewall to block any external network from gaining entry into the network. Note that, the purpose of having a gateway is to direct the data traffic in and out of the two local area networks under the WAN. The two networks will be connected through a virtual private network (VPN) which allows the creation of a secure network over a less secure network such as the internet.
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