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Connecting Networks © 2004 Cisco Systems, Inc. All rights reserved. Exploring How IP Address Protocols Work INTRO v2.0—4-1
© 2004 Cisco Systems, Inc. All rights reserved. INTRO v2.0—4-2 Outline Overview Address Resolution Protocol ARP Table Automated Ways of Getting an IP Address Domain Name System Summary
© 2004 Cisco Systems, Inc. All rights reserved. INTRO v2.0—4-3 ARP
© 2004 Cisco Systems, Inc. All rights reserved. INTRO v2.0—4-4 ARP Table
© 2004 Cisco Systems, Inc. All rights reserved. INTRO v2.0—4-5 DHCP
© 2004 Cisco Systems, Inc. All rights reserved. INTRO v2.0—4-6 DNS Application specified in the TCP/IP suite Means to translate human-readable names into IP addresses
© 2004 Cisco Systems, Inc. All rights reserved. INTRO v2.0—4-7 Summary ARP is used to map (bind) an IP addresses to its corresponding physical MAC addresses. To forward a packet from one host to another host on the same network over an Ethernet connection, each host maintains an ARP table (or ARP cache). The ARP table is used to mat the destination IP address to the destination physical MAC address. DHCP is used to assign IP addresses automatically and also other TCP/IP stack configuration parameters such as the subnet mask and default router and DNS servers.
© 2004 Cisco Systems, Inc. All rights reserved. INTRO v2.0—4-8 Summary (Cont.) A network device can use BOOTP when it starts up to obtain an IP address. With RARP, a physical address, such as a MAC address, can be associated with an IP address. DNS is an application that is specified in the TCP/IP suite, providing a means to translate human-readable names into IP addresses.
ARP AND RARP ROUTED AND ROUTING Tyler Bish. ARP There are a variety of ways that devices can determine the MAC addresses they need to add to the encapsulated.
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1 Address Resolution Protocol (ARP) Relates to Lab 2. This module is about the address resolution protocol.
1 © 2004, Cisco Systems, Inc. All rights reserved. Chapter 3 Ethernet Technologies/ Ethernet Switching/ TCP/IP Protocol Suite and IP Addressing.
IST 201 Chapter 9. TCP/IP Model Application Transport Internet Network Access.
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© 2002, Cisco Systems, Inc. All rights reserved..
© N. Ganesan, All rights reserved. Chapter IP Routing.
Building a Simple Network
Network Layer (Part IV). Overview A router is a type of internetworking device that passes data packets between networks based on Layer 3 addresses. A.
© 2007 Cisco Systems, Inc. All rights reserved.ICND1 v1.0—4-1 LAN Connections Using a Cisco Router as a DHCP Server.
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