Chapter 2 Routing Protocols and Concepts

Chapter 2 Routing Protocols and Concepts - Static Routing...

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© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 1 Version 4.0 Static Routing Routing Protocols and Concepts – Chapter 2
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2 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public Objectives Define the general role a router plays in networks. Describe the directly connected networks, different router interfaces. Examine directly connected networks in the routing table and use the CDP protocol. Describe static routes with exit interfaces. Describe summary and default route. Examine how packets get forwarded when using static routes. Identify how to manage and troubleshoot static routes.
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3 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public General Role of the Router Functions of a Router Best Path Selections Forwarding packets to destination Introducing the Topology 3 1800 series routers connected via WAN links Each router connected to a LAN represented by a switch and a PC
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4 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public General Role of the Router Connections of a Router for WAN A router has a DB-60 port that can support 5 different cabling standards Connections of a Router for Ethernet 2 types of connectors can be used: Straight through and Cross-over Straight through used to connect: Switch-to-Router, Switch-to-PC, Router-to-Server, Hub-to-PC, Hub-to-Server Cross-over used to connect: Switch-to-Switch, PC-to-PC, Switch-to-Hub, Hub-to- Hub, Router-to-Router
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5 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public Interfaces Examining Router Interfaces Show IP router command – used to view routing table Show Interfaces command – used to show status of an interface Show IP Interface brief command – used to show a portion of the interface information Show running-config command – used to show configuration file in RAM
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6 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public Interfaces Configuring an Ethernet interface By default all serial and Ethernet interfaces are down To enable an interface use the No Shutdown command
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7 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public Interfaces Verifying Ethernet interface Show interfaces for fastEthernet 0/0 – command used to show status of fast Ethernet port Show ip interface brief Show running-config Ethernet interfaces participate in ARP
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8 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public Interfaces Configuring a Serial interface Enter interface configuration mode Enter in the ip address and subnet mask Enter in the no shutdown command Example: R1(config)#interface serial 0/0 R1(config-if)#ip address 172.16.2.1 255.255.255.0 R1(config-if)#no shutdown
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9 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public Interfaces Examining Router Interfaces Physically connecting a WAN Interface. A WAN Physical Layer connection has sides:
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Chapter 2 Routing Protocols and Concepts - Static Routing...

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