Cisco Systems OL-31454-01 manual Specifying a Default Route or Gateway of Last Resort, IP Routing

Page 90

Chapter 4 Configuring the Router

Performing the Initial Configuration on the Router

Examples

Configuring the GigabitEthernet Interface: Example

!

interface GigabitEthernet0/0 description GE int to HR group

ip address 172.16.3.3 255.255.255.0 duplex auto

speed auto no shutdown

!

Sample Output for the show ip interface brief Command

Router# show ip interface brief

Interface

IP-Address

OK? Method Status

Protocol

GigabitEthernet0/0

172.16.3.3

YES

NVRAM

up

up

GigabitEthernet0/1

unassigned

YES

NVRAM

administratively down down

Router#

 

 

 

 

 

Specifying a Default Route or Gateway of Last Resort

This section describes how to specify a default route with IP routing enabled. For alternative methods of specifying a default route, see Configuring a Gateway of Last Resort Using IP Commands.

The Cisco IOS software uses the gateway (router) of last resort if it does not have a better route for a packet and if the destination is not a connected network. This section describes how to select a network as a default route (a candidate route for computing the gateway of last resort). The way in which routing protocols propagate the default route information varies for each protocol.

Configuring IP Routing and IP Protocols

For comprehensive configuration information about IP routing and IP routing protocols, see Cisco IOS IP Routing Protocols Configuration Guide, Release 12.4T on www.cisco.com.

IP Routing

You can configure integrated routing and bridging (IRB) so the router can route and bridge simultaneously. The router acts as an IP host on the network whether routing is enabled or not.

To read more about IRB, see the following URL:

http://www.cisco.com/en/US/tech/tk389/tk815/tk855/tsd_technology_support_sub-protocol_home.htm l

IP routing is automatically enabled in the Cisco IOS software. When IP routing is configured, the system uses a configured or learned route to forward packets, including a configured default route.

Note This task section does not apply when IP routing is disabled. To specify a default route when IP routing is disabled, see Configuring a Gateway of Last Resort Using IP Commands on www.cisco.com.

 

Cisco 2010 Connected Grid Router Hardware Installation Guide

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OL-31454-01

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Contents Cisco 2010 Connected Grid Router Hardware Installation Guide Page N T E N T S Attaching Rack-Mount Brackets to Cisco CGR 2010 Routers Configuring the Router Verifying the Initial Configuration Objectives AudienceChapter Title Description OrganizationConventions Convention IndicationBewaar Deze Instructies Warnung Wichtige Sicherheitshinweise Avvertenza Importanti Istruzioni Sulla SicurezzaAviso Instruções Importantes DE Segurança Spara Dessa Anvisningar GEM Disse Anvisninger Xiii Xiv Obtaining Documentation and Submitting a Service Request Searching for Cisco DocumentsXvi Chassis Views A P T E RHardware Features Overview of the Router Hardware FeaturesLocating Chassis Features and Functions Do not Remove During Network OperationGrwic Installation Options AUXGigabit Ethernet Ports Built-in Interface PortsGigabit Ethernet Ports SFP PortsRemovable and Interchangeable Modules and Cards USB Console PortGrid Router WAN Interface Cards Model Description Power SuppliesMemory Hot Swap Internal RPS1 Dual DC2Real-Time Clock LED IndicatorsSlot, Port, and Interface Information PSU 1 OK LEDColor Description SYSConsole EN ACTPSU USB CONSpecifications SlotGE 0/0 Link OL-31454-01 Preparing for Router Installation Safety Recommendations Safety with Electricity Preventing Electrostatic Discharge DamageGeneral Site Requirements Rack RequirementsRouter Environmental Requirements Console and Auxiliary Port Considerations Power Guidelines and RequirementsNetwork Cabling Specifications Console Port ConnectionsPreparing for Network Connections Auxiliary Port ConnectionsUSB Serial Console Port Serial Connections Configuring Serial ConnectionsEthernet Connections Serial DTE or DCE DevicesSignaling Standards Supported Distance LimitationsDevice Type Gender Typical Devices Asynchronous/Synchronous Serial Module Baud Rates 56000 102 16.4 1544000 T1Installation Checklist Creating a Site LogTask Verified by Date Preparing for Router Installation Creating a Site Log OL-31454-01 Installing and Connecting the Router OL-31454-01 CLI Console Access What you Need to KnowSlot and Port Numbers Before You Begin Unpacking the RouterInstalling the Router in a Rack Rack-Mounting the ChassisCisco CGR 2010 router can only be mounted in a rack Attaching Rack-Mount Brackets to Cisco CGR 2010 Routers PSU OK PWR-150W-HVMounting the Router in a Rack Mounting screwsPower-Supply Modules Connecting AC PowerModel Description Voltage Range Power-Input Terminal Designations Connecting AC Power Using Tie Wraps with the Strain Relief MechanismConnecting DC Power 10 Stripping the Input Power Source Wire Connecting DC Power 11 Using Tie Wraps with the Strain Relief Mechanism 12 CGR 2010 Power Terminal Cover Protecting the Terminal Block from ExposureShutting Off Power Replacing Power Supplies and Redundant Power SuppliesReplacing the Cisco CGR 2010 Router Power Supply Connecting to a Console Terminal or Modem Port Type Cable SectionSerial RJ-45 EIA RJ-45 Connecting to the Serial Port with Microsoft Windows Connecting to the Console Port with Mac OS Connect the OS X USB port to the routerConnecting to the Console Port with Linux To Disconnect the OS X USB Console from the Terminal WindowInstalling the Cisco Microsoft Windows XP USB Driver Installing the Cisco Microsoft Windows 2000 USB DriverUninstalling the Cisco Microsoft Windows USB Driver Installing the Cisco Microsoft Windows Vista USB DriverUsing the Add Remove Programs Utility Uninstalling the Cisco Microsoft Windows Vista USB Driver Using the Setup.exe ProgramConnecting to the Auxiliary Port AUXConnecting WAN and LAN Interfaces Connection Procedures and PrecautionsPorts and Cabling Auxiliary and Console PortsPort or Connection Port Type, Color1 Cable Pin Signal Input/Output Identify a Rollover CableSignal Pin Console Port Connection to a PC6shows the RJ-45 rolled console cable pinouts Console RJ-45 to RJ-45 Console Port Signaling and Cabling with a DB-9 AdapterSignal RJ-45 Pin DB-9 Pin Port DTE Rollover CableConsole Port Signaling and Cabling with a DB-25 Adapter 8shows the pinout descriptions for the DB-25 connectionsRJ-45 to Console DB-25 Auxiliary Port Signaling and Cabling Using a DB-25 Adapter Auxiliary Port Connection to a Modem9provides the pinout description for the modem connection Alternative Terminal and Modem Connections 10describes the alternative terminal and modem connectionsRJ-45 Cable Type Adapter Port EIA-232 DCE Ft m Female DB-25 Cable Type Length Connector TypeCAB-HD4-232FC CAB-HD4-232MTPin Signal Direction Description Pinouts for the Synchronous/Asynchronous CablesRS-232 DB-25 Cable Pinouts Ltst RS-232 DB-9 Cable PinoutsRXC TxceRS-232 RJ-45 Cable Pinouts Pin Signal DescriptionSignal Ground Transmit DataPowering up the Router Checklist for Power UpThis section covers the following topics Power Up Procedure Cisco Setup Command FacilityPerforming the Initial Configuration on the Router Verifying the Power Supply Side LED IndicationsBasic management setup configures only enough connectivity Using the Cisco Setup Command FacilityTo proceed using the setup command facility, enter yes Enter a hostname for the router this example uses myrouterFollowing configuration command script is created Summary of the available interfaces is displayedCompleting the Configuration User prompt is displayedUsing Cisco Configuration Professional Express Using Cisco IOS CLI-Manual ConfigurationPress Return to bring up the Router prompt Configuring the Router HostnameType enable to enter privileged Exec mode Following tasks are either required or optionalRestrictions Configuring the Enable and Enable Secret PasswordsCommand or Action Purpose ExampleBoot older boot ROMs that do not recognize the enable Optional Sets a local password to control access to variousBoot an older image of the Cisco IOS software or if you Secret commandConfiguring the Console Idle Privileged Exec Timeout Verify that you properly configured the idle privileged Configuring Gigabit and FastEthernet InterfacesDisplays the running configuration file Exec timeoutOptional Adds a description to an interface configuration Configuration modeSoftware configuration guide Description helps you remember what is attached toConfiguring the GigabitEthernet Interface Example Specifying a Default Route or Gateway of Last ResortConfiguring IP Routing and IP Protocols Sample Output for the show ip interface brief CommandDefault Routes Default NetworkGateway of Last Resort Selects a network as a candidate route for computing Enables IP routingEstablishes a static route Gateway of last resortSpecifying a Default Route Example Sample Output for the show ip route CommandMake sure that you configure all vty lines on your Starts the line configuration command collection mode forVirtual terminal lines vty for remote console access Line vty ? commandLines for remote access Configuring the Auxiliary LineVerify that you properly configured the virtual terminal What to Do NextVerifying Network Connectivity PrerequisitesAuxiliary line Diagnoses initial network connectivity Connected host for each configured interface toTo test the vty line password, perform this step from a To verify connectivity, ping the next hop router orSaves the running configuration to the startup Saving Your Router ConfigurationSaving Backup Copies of Configuration and System Image ConfigurationCopying the Startup Configuration to a Tftp Server Example Copying from Flash Memory to a Tftp Server ExampleVerifying the Initial Configuration NvramInstalling and Upgrading Internal Modules Installing and Upgrading Internal Modules Safety Warnings Removing a Compact Flash Memory Card PSU OKRemoving the Compact Flash Cover Installing a Compact Flash Memory Card Compact Flash Memory Card Slot in Cisco CGRInstalling SFP Modules Laser Safety GuidelinesRemoving SFP Modules Connect the network cable to the SFP moduleDisconnecting SFP Latch Mechanisms Installing Grid Router WAN Interface Cards Installing Single-Wide GRWICsInstalling Double-Wide GRWICs Proper Installation of Multiple GRWICsRemoving the Slot Divider From the CGR 2010 Router 11 Installing the Switch Module in the CGR 2010 Router 12 The Double-Wide Grwic Installed in the CGR 2010 Router OL-31454-01

OL-31454-01 specifications

Cisco Systems OL-31454-01 refers to a specific configuration guide for Cisco networking equipment, which serves an essential role in helping IT professionals understand how to deploy and manage their networking hardware efficiently. This document is particularly relevant for those working with Cisco routers and switches, highlighting various features, technologies, and best practices in network management.

A core feature of Cisco Systems OL-31454-01 is its focus on enhancing network performance and reliability. The systems typically include advanced Quality of Service (QoS) mechanisms, ensuring that critical applications receive the necessary bandwidth and performance even during peak usage times. This is crucial for enterprises that rely on uninterrupted access to applications and services.

The guide also discusses technologies such as VLANs (Virtual Local Area Networks), which allow network administrators to segment networks for improved performance and security. By isolating traffic within different VLANs, organizations can mitigate congestion and enhance overall network efficiency.

Another critical aspect of OL-31454-01 is its in-depth look at security features. Cisco networking solutions typically come equipped with integrated security protocols, such as IPsec for Virtual Private Networks (VPNs) and advanced threat detection mechanisms. This layered approach to security helps protect sensitive data from unauthorized access and cyber threats.

Furthermore, the guide emphasizes the importance of automation and programmability in modern networks. Utilizing Cisco's software-defined networking (SDN) capabilities, network engineers can automate various tasks, reducing the potential for human error and freeing up valuable resources. The integration of tools like Cisco DNA Center provides a unified network management platform, enhancing visibility and control across the entire network.

In addition to these features, Cisco Systems OL-31454-01 outlines various compatibility options with existing technologies and infrastructure. The guide ensures that IT teams can seamlessly integrate new hardware into their current networks without significant overhauls, facilitating a more efficient transition.

Overall, OL-31454-01 serves as a comprehensive resource for deploying and managing Cisco systems, offering valuable insights into essential features, technologies, and best practices that can significantly enhance an organization's networking capabilities.
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