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Lab 5.5.1: Examining a Device`s Gateway (Instructor Version)
Lab 5.5.1: Examining a Device`s Gateway (Instructor Version)

... 2. From a known good host computer, ping eagle-server. If the ping test fails, ping S1-Central, R2Central, R1-ISP, and finally eagle-server. Take corrective action on devices that fail ping tests. 3. If an individual host computer cannot connect to eagle-server, check the cable connection between th ...
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... channel partitioning MAC protocols:  share channel efficiently and fairly at high load  inefficient at low load: delay in channel access, 1/N bandwidth allocated even if only 1 active node! Random access MAC protocols  efficient at low load: single node can fully utilize channel  high load: coll ...
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... How many IP packets are sent in total when you run ping? ------------------------------------How many bytes are in each packet that the operating system uses by default for ping? --What information do you get from running the ping? The answer must be the interpretation of the result and not a copy o ...
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... broadcast a routing update and all nodes will consider the adversary as its parent. So the nodes which are not in the actual range of the parent may flood the packets to neighbors which also has the adversary as its parent •Routing Loops can be created. Suppose adversary knows node A and node B are ...
MAC Protocols
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... channel partitioning MAC protocols:  share channel efficiently and fairly at high load  inefficient at low load: delay in channel access, 1/N bandwidth allocated even if only 1 active node! Random access MAC protocols  efficient at low load: single node can fully utilize channel  high load: coll ...
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... encountered at the IP level. An OIS node analyzes the IP traffic and creates optical cut-through paths between its upstream and downstream neighbours, whenever a suitable aggregate of IP flows is detected • Test to use a provisioning tool like UCLP to interconnect different domains together. OIS act ...
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... A contracted security solution that can reach into hosts Providing remote workers with secure access to their employer's internal network Other security and management services are sometimes included as part of the package ...
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Distributed firewall

A firewall is a system or group of systems (router, proxy, or gateway) that implements a set of security rules to enforce access control between two networks to protect ""inside"" network from ""outside"" network. It may be a hardware device or a software program running on a secure host computer. In either case, it must have at least two network interfaces, one for the network it is intended to protect, and one for the network it is exposed to. A firewall sits at the junction point or gateway between the two networks, usually a private network and a public network such as the Internet.
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