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Design and testing of a secure computer network
Mikéska, Martin ; Blažek, Petr (referee) ; Malina, Lukáš (advisor)
This bachelor’s thesis deals with the security of computer networks using routers and switches. Intentionally we don’t use any security devices, such as firewalls and sensors IDS, IPS. The aim is to demonstrate the security of a private network by router, which has the firewall function, to reduce the cost of the IT infrastructure. In the theoretical part discusses why we need network security and focuses on network security problems. The thesis also describes the basic types of network attacks and network threats. Subsequently we focus on main security technologies and protocols that are used for networks security. In the practical part a medium-sized network topology which simulates a medium-sized company area is created. Further we configure EIGRP routing protocol, security VLAN and Access Control List. We also set up protocol PPP, Secure Shell, AAA technology and Network Address Translation for routers. After that we set up some security function for switches, such as Port Security, IP Source Guard, Dynamic ARP Inspection, PortFast and BPDU Guard. The thesis includes two labarotory exercises, which focus on the security networks using routers and switches. Exercises are created by the tool Activity Wizard in the program Cisco Packet Tracer.
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Design and testing of a secure computer network
Mikéska, Martin ; Blažek, Petr (referee) ; Malina, Lukáš (advisor)
This bachelor’s thesis deals with the security of computer networks using routers and switches. Intentionally we don’t use any security devices, such as firewalls and sensors IDS, IPS. The aim is to demonstrate the security of a private network by router, which has the firewall function, to reduce the cost of the IT infrastructure. In the theoretical part discusses why we need network security and focuses on network security problems. The thesis also describes the basic types of network attacks and network threats. Subsequently we focus on main security technologies and protocols that are used for networks security. In the practical part a medium-sized network topology which simulates a medium-sized company area is created. Further we configure EIGRP routing protocol, security VLAN and Access Control List. We also set up protocol PPP, Secure Shell, AAA technology and Network Address Translation for routers. After that we set up some security function for switches, such as Port Security, IP Source Guard, Dynamic ARP Inspection, PortFast and BPDU Guard. The thesis includes two labarotory exercises, which focus on the security networks using routers and switches. Exercises are created by the tool Activity Wizard in the program Cisco Packet Tracer.
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