reference to the topology and the IP addresses. Initial Configuration Routers’ Routing Protocols‚ FastEthernet and Serial interfaces used for the lab have been correctly configured and enabled. Unused interfaces have been shutdown. The RIP routing tables are complete for all routers and hosts. No ACLs have been applied to any of the routers. Below is the running-config file in Dallas router. version 12.3(4)T7 ! hostname Dallas ! interface FastEthernet0/0 ip address 192.168.100.1 255.255.255
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21. IP Address – A 32-bit binary number‚ often written in the DDN format‚ that hosts use as their unique identifier in a TCP/IP network‚ much like a postal mailing address in the postal system. IP Router – A device that performs IP routing. A physical device with roles defined by the IP protocol‚ including to connect LANs and WANs using its physical interfaces‚ and to route (forward) IP packets that come in any interface out the correct outgoing interface. IP Network – When discussing IP addressing
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communicates with another host using the TCP/IP protocol suite. What is the unit of data sent or received at each of the following layers? a. application layer:Message b. network layer:Datagram c. data-link layer:Frame Q2-12) When we say that the transport layer multiplexes and demultiplexes application layer messages‚ do we mean that a transport-layer protocol can combine several messages from the application layer in one packet? Explain. The TCP/IP protocol suite uses several protocols at
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throughput as the protocol complexity is not as much as on the RAN side. On the core side‚ throughput is normally measured from the Gn or the Gi interfaces. This is more logical since the TCP/IP session tunneled over GTP gives a more practical view of the bearer throughput‚ taking into account retransmissions and IP packet losses. Following sections give techniques for measuring throughput from various parts of the network. M KN 1.1 RLC Throughput measurement from Iub interface This measures the
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focused research on ways that networks could be interconnected‚ and the Internet was envisioned and created to be an interconnection of networks that use TCP/IP protocols. In the early 1980s a group of academic computer scientists formed the Computer Science NETwork‚ which used TCP/IP protocols. Other government agencies extended the role of TCP/IP by applying it to their networks: The Department of Energy’s Magnetic Fusion Energy Network (MFENet)‚ the High Energy Physics NETwork (HEPNET)‚ and the
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steps that an "intelligent hacker" would take in this intelligence gathering attempt: include; * Foot printing: this phase involves gathering as much information as possible on the target from authorized source of information (internet protocol (IP) address ranges‚ domain name system (DNS) servers‚ mail servers); * Scanning: this phase involves determining which hosts in the targeted network are alive and reachable (through ping sweeps)‚ which services they offer (through port scanning) and
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I. Abstract 2 II. The need for IPSec 3 1. Internet threats 3 2. TCP/IP security vulnerabilities 4 3. The need for IPSec 5 III. What is IPSec 5 1. What is IPSec 5 2. IPSec properties 6 IV. IPSec structure 6 1. Authentication header (AH) 6 2. Encapsulating Security Payload (ESP) 7 V. Security Associations (SA) 8 1. Security Associations 8 2. Combining Security Associations 9 3. SA and key management 10 VI. Building a real VPN with IPSec 11 1. VPN overview 11
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Bozhidar Mochev LAB1 NSLOOKUP 1. Run nslookup to obtain the IP address of a Web server in Asia. 2. Run nslookup to determine the authoritative DNS servers for a university in Europe. 3. Run nslookup so that one of the DNS servers obtained in Question 2 is queried for the mail servers for Yahoo! mail. I assume that taking screens of IPConfig section 2 of the LAB is pointless‚ because that’s just too easy and time wasting. Better to skip onto the next one. Tracing DNS with Wireshark
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points each. Assessment Areas Topic 1: The Input /Output Process Topic 2: OSI Model Topic 3: SOHO Broadband Topic 4: TCP/IP Topic 5: Client-Server Topic 6: Windows Server Topic 7: Active Directory Topic 8: Universal Group Membership Caching and the Global Catalog Topic 9: General Programming Topic 10: Databases Topic 11: Linux Networking Topic 12: Routing Protocols Topic 13: IP Addressing & Routing Topic 14: Information System Security Topic 15: Project Management Process Topic 1: The Input /Output
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Material Appendix E TCP/IP Network Planning Table Refer to appendix E1. Identify the problems with the TCP/IP network and complete the table. Problem Explanation of Proposed Solution Group A-D – Subnet addresses need corrected all should be 255.255.0.0 Correct the subnet addresses for group A-D by changing the subnet address on computer A to be the same as B‚C. Then correct D to match B&C. Router1 – the IP Addresses should match the network they flow from. IP Address flowing from the
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