BrandonBerne_Week2_Lab2_exploringtcp - Exploring TCP/IP...

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Exploring TCP/IP Although we use a logical address, such as to communicate with another computer, it is the physical address, also called Media Access Control (MAC) address that is used to communicate between two directly connected computers. When you first open up communications, it uses the IP address of the directly connected computer to ask for its MAC address. The operating system stores this association between the IP address and the MAC address in the ARP (Address Resolution Protocol) cache. DELIVERABLES: You will answer the questions below and insert one screen-shot as described below. Launch the “XP + XP” environment. We start out by looking at the cache: 1. Get to the command prompt. Start->Programs->Accessories->Command Prompt 2. Press Enter after typing the command: arp –a Write what the command produced. It Produced: C:\Documents and Settings\Administrator>arp -a Interface: Internet Adress Physical Adress Type 00-17-a4-a7-dc-aq dynamic You see an IP address, the corresponding MAC address, and the fact that it is dynamic (based on a request for the IP/MAC association) 3. Press Enter after typing: ipconfig Fill in the following: Ethernet adapter Local Area Connection: blank IP Address: Subnet Mask: Default Gateway: blank Ethernet adapter Local Area Connection 2 IP Address: Subnet Mask: Default Gateway: blank You should notice that your default gateway is the same IP address as the one in the ARP cache. 4.
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This note was uploaded on 09/16/2011 for the course COMPUTER I Varying taught by Professor Varying during the Spring '11 term at DeVry Cincinnati.

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BrandonBerne_Week2_Lab2_exploringtcp - Exploring TCP/IP...

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