计算机网络代写｜Network Term Project

本次作业是一个计算机网络代写应用技术相关的project

Topology

There are 4 separate networks connected with various WAN technologies:

ISP Access Network
Main Campus
Data Center
Home

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, witha shared public IP 202.175.10.135

7) Access control

The Web server allows access to its WWWservice 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, butit 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.

程序辅导定制C/C++/JAVA/安卓/PYTHON/留学生/PHP/APP开发/MATLAB