Asante Technologies 35516 Establish Address Resolution, Configuring IP Routing, Secondary

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To assign multiple IP addresses to network interfaces, use the following command in interface configuration mode:

Command

Purpose

ip address address I mask

Assign multiple IP addresses to network

secondary

interfaces.

5.2 Establish Address Resolution

A device in the IP can have both a local address (which uniquely identifies the device on its local segment or LAN) and a network address (which identifies the network to which the device belongs). The local address is more properly known as a data link address because it is contained in the data link layer (Layer 2 of the OSI model) part of the packet header and is read by data link devices (bridges and all device interfaces, for example). The more technically inclined will refer to local addresses as MAC addresses, because the Media Access Control (MAC) sub-layer within the data link layer processes addresses for the layer.

To communicate with a device on Ethernet, you first must determine the 48-bit MAC or local data link address of that device. The process of determining the local data link address from an IP address is called address resolution. The IC35516 software uses the Address Resolution Protocol (ARP) for address resolution. ARP is used to associate IP addresses with media or MAC addresses. Taking an IP address as input, ARP determines the associated media address.

Once a media or MAC address is determined, the IP address/media address association is stored in an ARP cache for rapid retrieval. Then the IP datagram is encapsulated in a link-layer frame and sent over the network.

5.2.1 Define a Static ARP Cache

ARP provides a dynamic mapping between IP addresses and media addresses. Because most hosts support dynamic address resolution, you generally do not need to specify static ARP cache entries. Completing this task installs a permanent entry in the ARP cache. The entry is used to translate 32-bit IP addresses into 48-bit hardware addresses.

Optionally, you can specify that the software respond to ARP requests as if it was the owner of the specified IP address. You also have the option of specifying an interface when you define ARP entries.

Perform the following task in global configuration mode, to provide static mapping between IP addresses and media addresses.

Command

Purpose

arp ip-address hardware-address

Globally associate an IP address with a media

 

(hardware) address in the ARP cache.

arp ip-address hardware-address

Specify that the software respond to ARP

[interface ]

requests as if it was the owner of the specified

 

interface.

To display the ARP being used on a particular interface, use the show interface in top mode or global configuration mode. Use the show arp command in top or configuration mode to examine the contents of the ARP cache.

Configuring IP Routing

IP routing protocols are divided into two classes: Interior Gateway Protocols (IGPs) and Exterior Gateway Protocols (EGPs).

Note: The word gateway is often a part of a routing protocol’s name, since many routing protocol specifications refer to routers as gateways. However, a protocol translation gateway is usually defined by the Open System Interconnection (OSI) reference model as a Layer 7 device, whereas a router is a Layer 3 device, and routing protocol activities occur at the Layer 3 level.

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Contents IntraCore 35516 Series IntraCore 35516 Series Technical SupportTable of Contents Page Features IntroductionPackage Contents LEDsFront and Back Panel Descriptions GbicManagement and Configuration Console InterfaceSafety Overview Hardware Installation and SetupInstallation Overview Recommended Installation ToolsEnvironmental Requirements Installation into an Equipment RackPower Requirements Cooling and AirflowInstalling a Gbic Gigabit Interface ConvertersGbic Care and Handling Installing the Optional Emergency Power SupplyRemoving a Gbic System Information System up since 103443 Fri Feb 07Connecting Power Connecting to the Network1 10/100/1000BaseT Ports Cabling Procedures Setup Gigabit Ethernet Ports Cabling ProceduresConnecting to a Console User Access Verification Password Specifies an Unencrypted line password will follow Setting PasswordsUnencrypted cleartext line password Specifies a Hidden line password will followConfiguring an IP Address Setting a Default IP Gateway AddressRouterconfig-if-veth1# Restoring Factory Defaults System Boot ParametersRouterconfig# boot system flash bank1bank2 Access Each Command Mode Understanding the Command Line Interface CLIUser Top User Exec Mode Command Show ? PurposePrivileged Top Privileged Exec Mode Router enable Password Router#Command Purpose Global Configuration Mode Command Purpose Router# configure terminalCommand Exit end Ctrl-Z Purpose Interface Configuration Mode Router Configuration Mode Route-Map Configuration ModeAdvanced Features Supported within the Command Mode Command Help PurposeRouterconfig# routed rip Invalid input detected at marker Checking Command SyntaxRouterconfig# hostname ? Word This systems network name Routerconfig# route Ambiguous command. Routerconfig#Using Command-Line Editing Features and Shortcuts Using CLI Command HistoryUsing the No and Default Forms of Commands Routerconfig# router Command incomplete. Routerconfig#Router# confTab Router# configure Moving Around on the Command LineCompleting a Partial Command Name Keystrokes PurposeDeleting Entries Editing Command Lines that WrapRouter# co? configure copy Router# co Keystrokes Purpose Press the Delete or BackspaceTransposing Mistyped Characters Redisplaying the Current Command LineScrolling Down a Line or a Screen Controlling CapitalizationPassword Passwords and Privileges CommandsEnable Password Routerconfig-line# password AsanteService Password-Encryption Changing the Password Managing the System and Configuration FilesSetting the System Clock Managing the SystemTrace Packet Routes Enable the System LogDisplaying the Operating Configuration Test Connections with Ping TestsConfiguration to Nvram Managing Configuration FilesConfiguring from the Terminal Routerconfig# hostname newname Newnameconfig# endCopying Configuration Files to a Network Server Running-config Configuring Snmp and Spanning TreeConfiguring Snmp Support Startup-configRouterconfig# duplicate-ip detect Configuring Spanning Tree Protocol STPCreate or Modify Access Control for Snmp Community Disable the Snmp ProtocolMaximum Age Forward TimeHello Time PriorityPort Priority Routerconfig# mac-address-table aging-timeMAC Address Table Port Path CostAssign IP Addresses to Network Interfaces Configuring IPConfiguring IP Addressing Class Address or Range StatusCommand Purpose Assign Multiple IP Addresses to Network InterfacesCidr Prefix Class C Equivalent Host Addresses Define a Static ARP Cache Establish Address ResolutionConfiguring IP Routing SecondaryConfiguring Static Routes Route Source Default DistanceAllow Unicast Updates for RIP Configuring RIPEnable RIP Neighbor ip-addressCommand Purpose Route-map map-tagdeny permit sequence Specify a RIP VersionRedistribute Routing Information Set Administrative Distance Set Metrics for Redistributed RoutesGenerate a Default Route Suppress Routing Updates through an InterfaceFiltering Routing Information Manage Authentication Keys Adjust TimersEnable or Disable Split-horizon Command Purpose Offset-list access-list-name in outConfiguring IP Multicast Routing Monitor and Maintain RIPConfiguring Igmp Modifying the Igmp Host-Query Message IntervalPurpose Ip igmp query-interval 1-65535 seconds Changing the Igmp Version CommandConfiguring the Router as a Statically Connected Member SecondsConfiguring Dvmrp Nbr-timeout 35-8000 secondsDefault value 200 seconds Default value 180 secondsCommand Purpose Route-expire-time 20-4000 seconds Report-intervalUsing Access Lists Create a Standard Access ListCreate an Expanded Access List Destination address to match. e.gOperator equal to Creating an Access List with a NameApplying an Access List to an Interface Operator greater thenConfigure ABR Type Configuring OspfEnable Ospf Command Purpose Router ospf StepConfigure Compatibility Configure Ospf Interface ParametersConfigure Ospf Network Type Configure Ospf Not So Stubby Area Nssa Configure Ospf for Non-broadcast NetworksConfigure Area Parameters Command Purpose Neighbor ip-address priority numberCreate Virtual Links Configure Route Summarization between Ospf AreasCommand Purpose Area area-idvirtual-link router-idhello Not-advertisedRefresh Timer Configuration Control Default MetricsConfigure Route Calculation Timers Redistribute Routes into OspfCommand Purpose Distance ospf external distance1 inter-area Change the Ospf Administrative DistancesPrevent Routes from being Advertised in Routing Updates Suppress Routes on an InterfaceRouter ip-address NameVrrp Configuration Virtual Router Redundancy Protocol VrrpMonitoring and Maintaining the Network Configuring Icmp Router Discovery Protocol IrdpEnable Irdp Processing Change Irdp ParametersShow ip prefix-list prefix-list-name Command Purpose Show arp interfaceShow access-lists access-list Show ip irdpVlan Configuration Creating or Modifying a VlanRouterconfig# interface veth2 vlan Routerconfig-if-veth2# Routerconfig# no vlan Routerconfig# exit Router# show vlanDeleting a Vlan Static Access Vlan Port Membership ModesTrunk Ieee 802.1Q Command Purpose Routerconfig# vlan dot1q tag native 3 Dot1q TunnelTrunk allowed vlan add all except Mode dot1q-tunnel Appendix A. Basic Troubleshooting Problem Possible SolutionsTechnical Support and Warranty Appendix B. SpecificationsPhysical Characteristics Standards ComplianceAppendix C. FCC Compliance and Warranty Statements FCC Compliance Statement Important Safety InstructionsIntraCare Warranty Statement Page Pin Number Signal Name Appendix D. Console Port Pin OutsAppendix E. Online Warranty Registration
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