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计算机网络代写 | Term Project

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本次澳门代写是计算机网络应用技术相关的一个Assignment

1. ISP Access Network

1) Hosts

* Internet PC: it is connected to the ISP router directly, with an IP addresses of 202.175.10.144/30

It provides 3 types of network accesses:

* Serial connection: offering network addresses of 202.175.10.128/29 for Main Campus

* Ethernet connection: offering network addresses of 202.175.10.136/30 for Data Center

* PPPoE via DSL connection: offering network addresses of 202.175.10.140/30 for Home

2. Main Campus

Its configuration is as follows:

1) Hosts

* 1 Admin PC: the PC used by the network administrator of the campus

* 2 student PCs

* 1 Web server

* 1 FTP server

2) Network devices

In addition to a Gateway Router R1 connected to the ISP Access Network, you can deploy any other network devices (including Routers, Switches, DSL modems, etc) in the network if necessary.

3) VLANs

Note: you can create additional VLANs according to your need (e.g., VLANs for interconnected routers and switches)

* VLAN 10: for 1 Admin PC that can access the Internet

* VLAN 20: for 2 student PCs that can access the Internet

* VLAN 30: for an internal FTP server that cannot be accessed from Internet

* VLAN 40: for a Web server that can be accessed from Internet

4) Internet connection

The main campus connects the ISP Access Network through its Gateway Router R1 via Serial connection:

5) Private IP Addresses

* The Gateway Router R1 in the Main Campus provides DHCP service for the Admin PC with network prefix 192.168.10.0/24

* The Gateway Router R1 in the Main Campus provides DHCP service for the 2 student PCs with network prefix 192.168.20.0/24

* The FTP server has static private IP address: 192.168.30.10

* The Web server has static private IP address: 192.168.40.10

6) NAT service

The Gateway Router R1 in the Main Campus provides NAT service for 3 PCs, the FTP server and the Web server in the following ways:

* FTP server: static NAT type service with a public IP address 202.175.10.132

* Web server: static NAT type service with a public IP address 202.175.10.133

* Admin PC: PAT address translation, with a public IP 202.175.10.134

* Student PCs: PAT address translation, with a shared public IP 202.175.10.135

7) Access control

* The Web server allows access to its WWW service from all sites, including the Internet, but it only allows full access to it from the Admin PC.

* The FTP server does not allow access from Internet, but it allows FTP access to it from the three sites: Main Campus, Data Center, and Home. Note that accesses to the FTP server from the Data Center or Home must go through VPN. In addition, the FTP server also allows full access to it from the Admin PC.

3. Data Center

The Data Center is hosted by the ISP provider, and it has the following configuration.

1) Hosts

The Data Center has just 1 server, with private IP address 192.168.90.10, and public IP address 202.175.10.138

2) Network devices

In addition to a Gateway Router R6 connected to the ISP Access Network, you can deploy any other network devices (including Routers, Switches, DSL modems, etc) in the network if necessary.

3) Internet connection

The Data Center connects to the ISP Access Network through its Gateway Router R6 via Ethernet connection


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