Paradyne Routers Numbered DSL Interface, Unnumbered DSL Interface, Simplified Network Topology

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Configuring the DSL Router

Numbered DSL Interface

In this scenario, the hosts attached to the DSL router's Ethernet interface are on a different logical network than the core router. The DSL router is the next hop router for the hosts. The upstream next hop router for the DSL router is the core router.

Simplified Network Topology

Core

Router

WAN

DSL

Router

Host

(End Users)

99-16609

The hosts can be assigned IP addresses on the network attached to the DSL router's Ethernet interface. The upstream next hop router is assigned an address on a different logical network than the hosts.

Actions required to configure the DSL router interfaces in this scenario:

HAssign IP address to Ethernet interface: eth1

HAssign IP address to DSL interface: dsl1

HAssign upstream next hop router

Unnumbered DSL Interface

In this LAN extension application scenario, the hosts connected to a corporate network for virtual office connection or teleworkers want to look like they are on the same network as the core router. The core router will be the next hop router for the hosts.

Actions required to configure the DSL router interfaces in this scenario:

HAssign IP address to Ethernet interface: eth1

HSpecify the DSL interface as unnumbered: dsl1

HAssign upstream next hop router

HEnable Proxy ARP for both the eth1 and dsl1 interfaces

HDisable scoping on the DSL card at the DSLAM/GranDSLAM chassis

6371-A2-GB20-10

August 2000

3-3

Image 23

Contents HOTWIRE DSL Routers Copyright E 2000 Paradyne Corporation All rights reserved Contents Configuring the DSL Router Monitoring the DSL Router Index Document Purpose and Intended Audience About This GuideSection Description Document SummaryDocument Number Document Title Product-Related DocumentsSyntax Translation Document ConventionsDSL Technologies Supported Introduction to Hotwire DSL RoutersWhat is a Hotwire DSL Router? Optional Network Access Provider NAPTypical DSL Router System IP routing with Hotwire DSL Router FeaturesService Subscriber Levels of Access Accessing the DSL RouterAccess Control to the DSL Router Show console Changing Access Session LevelsLocal Console Access Admin enableInvalid Characters Value Ascii Hex Translation Setting Up the New Users LoginCUSTOMER#. Type configure terminal and press Enter Local console disabled by conflict Telnet AccessDetermining the Current Access Level Determining the Available CommandsChanging the System Identity Using the List CommandExiting from the System Automatically Logging Out If you are accessing the DSL router ThenManually Logging Out Interfaces for the DSL Router Configuring the DSL RouterOverview of DSL Router Configuration Ethernet and DSL Interface Identifiers Service Domain IP Address AssignmentsSimplified Network Topology Numbered DSL InterfaceUnnumbered DSL Interface Network Considerations IP RoutingProxy ARP Address Resolution Protocol ARPNetwork Address Port Translation Napt Network Address Translation NATBasic NAT Applications Supported by NAT Dynamic Host Configuration Protocol Dhcp ServerIP Options Processing Dhcp Relay Agent Land Bug/Smurf Attack Prevention SecurityIP Filtering Routed vs. Bridged PDUs Routed Network Model Standard modeConfiguration Examples DSL Router Configuration ExamplesCustomer Premises CP Basic Configuration ExampleNAT Mapping Public IP Addresses Private IP Addresses Basic NAT Configuration ExampleNapt Mapping Public IP Addresses Private IP Addresses Napt Configuration ExampleCore Router 155.1.3.253 Console Port Connection Dhcp Relay with Proxy ARP Configuration Example Public IP Addresses for Basic NAT Private IP Addresses Dhcp Server with Basic NAT Configuration ExampleDownstream Router Configuration Example What to Monitor Detecting ProblemsMonitoring the DSL Router ± Ethernet Link up down Status of InterfacesShow interface Show interface eth1 dsl1Show statistics eth1 dsl1 ip Interface StatisticsShow statistics Discard Reasons for the Ethernet Interface eth1 1 Clearing StatisticsList of Discard Reasons Clear statistics eth1 dsl1 ipDiscard Reasons for the DSL Interface dsl1 1 Discard Reasons for the Ethernet Interface eth1 2Discard Reasons for IP Discard Reasons for the DSL Interface dsl1 2Show alarms Diagnostics and TroubleshootingDiagnostics and Troubleshooting Overview Alarms InquirySyslog ip ip-addr Syslog enable disableSystem Log Show syslogSyslog Messages 1 Level Description Event Syslog EventsSyslog level level Show log numberReporting Syslog Message DisplaySyslog Messages 2 Level Description Event Ping reply x.x.x.x Request Timed OUT PingPing Test Results Ping reply x.x.x.x bytes of data=nnX.x TraceRouteTraceRoute Test Results Command Line Interface Feature Command Line InterfaceDocument Conventions Command RecallNavigation Ethernet Frame Format Command Line Interface CommandsConfiguration Control Commands RFC 1483 EncapsulationInterface and Service Domain IP Address Ip route create dest-ipdest-mask next-hop-ip remote IP Routing TableDelete eth1ifn dsl1ifn Ip route purge Proxy ARP ARP TableNat basic address ip-addrip-mask Nat basic enableNat napt enable Nat timeout timeNat napt delete udp tcp port Nat basic delete private-ipNat purge Nat disableDhcp server enable disable Dhcp ServerDhcp Relay Agent IP Packet Processing IP multicast enable disableIP processing enable disable Trap disable enable name of trapNAT disabled or NAT enabled basic NAT Napt Show Command OutputsShow config Show arp Show arp timeoutNAT timeout xx minutes NAT basic mappings Show ip route ip-addressShow dhcp server Show NAT naptShow traps Sample show dhcp relay display Show alarms Show syslog Show log #Show Dhcp relay Show interface Show statisticsConfiguration Default Settings Configuration Defaults Command Line ShortcutsCustomer ParadyneAbc123 BytesTable B-2. Command Line Input Shortcuts 1 Command Line Input ShortcutsTable B-2. Command Line Input Shortcuts 2 Show interface dsl1 eth1 Table B-2. Command Line Input Shortcuts 3Configuration Defaults & Command Line Shortcuts Traps Overview Traps & MIBsSnmp Overview Variable Binding DSL Router TrapsSystem Group MIBs OverviewStandard MIBs MIB II RFCSystem Ssssssssssss Boot bb.bb.bb 2nd Boot xx.xx.xx DSPYy.yy.yy H/W Releasezzz CCA part numberº Interfaces Group RFCInterfaces IfEntryIfOperStatus Specifies the current DSL interface IP Group RFC Table C-5. IP Group Objects 1 Description Setting/ContentsExtension to Interfaces Table RFC IP Cidr Route Group RFC Table C-5. IP Group Objects 2 Description Setting/ContentsIpCidrRouteEntry 11 ± Transmission GroupEthernet-Like MIB RFC Snmp GroupActive1 Paradyne Enterprise MIBsDevice Control MIB NoOp1Device Diagnostics MIB Traceroute ApplpingTestEntryAppTracerouteResultsEntry ConfigureApplTracerouteResultsEntry DevStatus Health and Status MIBDevStatus1 Factory1-to-active8 Configuration MIBSecondary Interface Configuration MIBPdnInetIpAddressTableEntry PrimaryDhcp MIB DSL Endpoint MIB Syslog MIB DSL Router Terminal Emulation Accessing the List Command OutputDSL Router Terminal Emulation Terminal Emulation Programs Numbers IndexIN-2 IN-3