A computer network is a set of computers. Computers are connected to share the information. A computer network is used for communicating, sharing files, sharing devices, etc. there are different types of computer connections depends on the requirement. Some hardware dives are required to set up a computer network like cables, routers, network cards, switch, hub, etc.
Here are some topologies
Star topologies: all are computers that are connected to a single device i.e hub. It forms a star structure. It provides fast performance with low network traffic.
Bus topologies: it is a simple topology. In this, all computers are connected to a single cable. It is a very cost-effective topology.
Ring topologies: it forms a ring structure. It is a very cheap topology and easy to expand the network. , network protocols, wired and wireless network,
Mesh topology: it is a point to point topology. All network nodes are connected to each other. It provides security and privacy.
There are some more topologies like tree topology, hybrid topology, etc.
There are different types of networks some of them are:
There are many other networks available like GAN, HAN, EPN, BBN, GAN, etc.
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4 Task 1 - IP addressing scheme and Network setup 4.1 The company uses a Class B private address range of 172.2X.0.0/16 for their addressing across all the sites (where X is your group number). 4.2 In your group, discuss and decide the IP addressing scheme for each network. The IP addressing scheme must meet the following requirement: • Each User LAN must be allocated with at least: o Group 1 & 4: 30 IP addresses o Group 2 & 5: 50 IP addresses o Group 3 & 6: 100 IP addresses • Each Server Farm must be allocated with at least: o Group 1 & 2: 4 IP addresses. o Group 3 & 4: 8 IP addresses o Group 5 & 6: 16 IP addresses • Each point to point connection must use a subnet with prefix of /30. 4.3 Fill in the Table A1 in Appendix A with the IP addressing scheme. 4.4 Fill in the Table B1 in Appendix B for the IP address allocation. 4.5 Create the network of your assigned site (HQ, IT, Production or Marketing) using packet tracer. 4.6 Configure the IP addresses for the devices in your packet tracer file. 5 Task 2 – Routing Information Protocol (RIP) 5.1 Configure RIPv2 in your site. Disable Auto-Summary for RIP. 5.2 Test connectivity between the end devices in your site. 6 Task 3 – Connection across different sites using Multiuser feature in Packet Tracer 6.1 Using the Multiuser feature in Packet Tracer, connects the 3 remote sites (Production, Marketing and IT) to the HQ site via serial links on R2. 6.2 Configure PPP authentication with CHAP between the different sites. Each PPP connection must use a unique and different password. 6.3 Test connectivity across different sites. PCs in each User LAN must be able to ping the PCs and servers in all other sites. 7 Task 4 – Dynamic Host Configuration Protocol (DHCP) configuration 7.1 For each site, configure DHCP on router R1 to provide IP addressing information to User LAN 1 and 2, based on the following requirement: • Address pool: 10th to 25th IP address of the subnet • Default Gateway: Appropriate IP address for the default gateway • DNS server: Intranet Server at respective site 7.2 Set the PCs in the User LAN to obtain IP addressing information dynamically. 8 Task 5 – Standard Access Control Lists 8.1 Configure standard ACLs on suitable router(s) based on the following requirement: • Access Control to Site’s Server Farm (Intranet): o Allow IP packets from its own site’s user LANs to access its own Server Farm (Intranet) o Allow IP packets from other site’s user LANs to access Server Farm (Intranet) according to the table below: Source Destination IT User LANs HQ Server Farm (Intranet) HQ User LANs Marketing Server Farm (Intranet) Marketing User LANs IT Server Farm (Intranet) HQ User LANs Production Server Farm (Intranet) o Deny all other traffic to the Server Farm (Intranet) • Test the ACL • For HQ site only: o The company has acquired the following public IP addresses from ISP: • 209.165.17.Y /28 where Y is based on your group number:
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