Firewalls There are three main types of firewalls that are used in the networking community. The three types are Network-level‚ Circuit-Level Gateway‚ and Application-Level. Network-level Fire walls work at the network level. It inspects packet headers and filter traffic based on their source and destination. According to "Pc Results Inc." (2013)‚ "They also take into account IP addresses‚ ports used and services requested.” Circuit-level Gateway firewalls work by determining the legitimacy of
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an IP address but not a name‚ then the most likely reason for failure to connect is a name resolution problem. Name resolution can fail for NetBIOS or DNS host names. If the client operating system is NetBIOS dependent‚ the VPN clients should be assigned a WINS server address by the VPN server. If the client operating system uses DNS preferentially‚ VPN clients should be assigned an internal DNS server that can resolve internal network host names. When using DNS to resolve internal network host
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Category Points Description Section 1 Subnetting IP Address‚ Configuring Static Routes and Static Host Table - 15 Points Task 6: Step 1 Related Explanation or Response Task 6: Step 3 Related Explanation or Response Task 6: Step 5 Related Explanation or Response Task 6: Step 6 Related Explanation or Response Summary Paragraph 1 1 1 1 1 1 1 1 7 Paste the requested screenshot Provide the requested answer Paste the requested screenshot Provide the requested
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system or must be run manually. Wireshark – manual Nessus Client – manual Nessus Server Manager – can be set up to run at Startup Filezilla Server Interface – starts as a service Zenmap GUI - manual 2. What was the allocated source IP host address for the TargetWindows01 server‚ TargetUbuntu01 server‚ and the IP default gateway router? TargetWindows01 server – 172.30.0.8 TargetUbuntu01 server – 172.30.0.4 IP default gateway router – 172.30.0.1 3. Did the targeted IP hosts respond to
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Questions PG 4-5 1. What is the most important function of a router? Routers route packets 2. Define default gateway. You can use any source at your disposal. * On a computer‚ a reference to an IP address on the same subnet‚ with that IP address being the IP address or a router. When the computer needs to send a packet to another subnet‚ it sends the packet to its default gateway. Also called default router. * No 3. In three or four sentences‚ explain the purpose of
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6.1.1 BSS - A set of STAs (the component that connects to the wireless medium such as a network adapter or NIC) that communicates with each other. ESS - An Extended Service Set (ESS) is a set of two or more BSSs that form a single sub network. 6.1.2 6.1 review 1. How the service works is that it allows you to connect to the network. 2. Radio frequency is superior because it is fast cause it through a satellite. 3. WLAN is used in home because there easier to maintain and to take care of it I could
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a dual homed host architecture is a computer having two network connections separately for two network interfaces. Such host work as router among two networks however when dual homed hosts architectures are implemented in firewall this routing function is disabled. As routing function is disabled and IP packet is also blocked completely thus the host isolates two network completely from each other thus directly routing between the networks is completely blocked. Systems inside such firewall and systems
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Router 3 Router>enable Router#configure terminal Router(config)#int fa0/1 Router(config-if)#ip add 192.168.1.0 255.255.255.0 Router(config)#int eth0/0/0 Router(config-if)#ip add 10.10.10.1 255.255.255.252 Router(config)#no sh Router(config)#int fa0/0 Router(config-if)#ip add 192.168.2.0 255.255.255.0 Router(config)#ip route 20.20.20.0 255.255.255.25210.10.10.2 Router(config)#ip route 30.30.30.0 255.255.255.252 20.20.20.2 Router(config)#ip route 40.40.40.0 255.255.255.252 30.30.230.2 Router(config)#ip
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Securing routers Routers are the basic level of the Internet. It is responsible for the communication through the network‚ between computers and servers. It is important to secure the routers so the attackers can’t gain information from the routers. There are many ways of securing the routers such as upgrade the operating system‚ warning banners and disable unneeded services. Hardening cisco routers Upgrade IOS One of the important parts of securing routers is to choose the right router
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FileZilla Server Y 2. Internet Explorer N 3. Mozilla Firefox N 4. Nessus Client N 5. Wire Shark Y 2. What was the allocated source IP host address for the TargetWindows01 server‚ TargetUbuntu01 server‚ and the IP default gateway router? 1. The IP host is 172.30.0.8. 2. The IP host address is 172.30.0.4. 3. The IP host address is 172.30.0.2. 3. Did the targeted IP hosts respond to the ICMP echo-request packet with an ICMP echo-reply packet when you initiated the “ping” command
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