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Paradyne Routers manual DHCP Server with Basic NAT Configuration Example, dhcp server enable

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DHCP Server with Basic NAT Configuration Example

DSL Router Configuration Examples

DHCP Server with Basic NAT Configuration Example

Customer Premises (CP)

Core

Router

155.1.3.1Console Port

			Connection
	DSL		Ethernet
	WAN		eth1
	dsl1	DSL	eth1
	155.1.3.2	DSL	10.1.3.10
	155.1.3.2	Router	10.1.3.10

End-user

Systems

10.1.3.2

10.1.3.3

Hub

10.1.3.9

	00-16613-01

Public IP Addresses for Basic NAT	Private IP Addresses

192.128.1.1	10.1.3.2

192.128.1.2	10.1.3.3

. . .	. . .

192.128.1.8	10.1.3.9

In this DHCP Server with Basic NAT example:

HThe clients are using dynamic IP address assignment and use the Ethernet interface (eth1) of the DSL router as the next hop router (default gateway).

HThe DSL interface (dsl1) must be numbered.

HThe DSL router is configured as the DHCP server giving the private IP addresses to the clients.

HThe Ethernet interface is in private address space. NAT is used for one-to-one mapping of addresses.

The command line syntax for this example is:

ifn address eth1 10.1.3.10 255.255.255.240 ifn address dsl1 155.1.3.2 255.255.255.0 ip route create upstream eth1 155.1.3.1

nat basic address 192.128.1.0 nat basic enable

dhcp server addresses 10.1.3.2 10.1.3.9 dhcp server router 10.1.3.10

dhcp server enable

6371-A2-GB20-10

August 2000

4-7

Image 37

Paradyne Routers DHCP Server with Basic NAT Configuration Example, Public IP Addresses for Basic NAT, dhcp server enable

Contents

USERS GUIDE HOTWIRE DSL ROUTERSDocument No. 6371-A2-GB20-10 AugustCopyright E 2000 Paradyne Corporation All rights reserved Warranty, Sales, Service, and Training InformationPrinted in U.S.A Document Feedback1 Introduction to Hotwire DSL Routers Contents2 Accessing the DSL Router About This GuideDSL Router Configuration Examples Configuring the DSL RouterContents A Command Line Interface 6 Diagnostics and Troubleshooting5 Monitoring the DSL Router ContentsC Traps & MIBs B Configuration Defaults & Command Line ShortcutsD DSL Router Terminal Emulation IndexDocument Purpose and Intended Audience About This GuideChapter Document SummaryAppendix A Appendix BDocument Number Product-Related DocumentsDocument Title Syntax Document ConventionsTranslation ItalicsWhat is a Hotwire DSL Router? Introduction to Hotwire DSL RoutersDSL Technologies Supported Typical DSL Router System H High-speed Internet or intranet access Hotwire DSL Router FeaturesH IP routing with H Console Terminal Interface. Provides an interface forService Subscriber Access Control to the DSL Router Accessing the DSL RouterLevels of Access Local Console Access Changing Access Session Levelsadmin enable show consoleProcedure Setting Up the New Users LoginCUSTOMER#. Type configure terminal and press Enter CUSTOMER - CONFIG#Determining the Current Access Level Telnet AccessDetermining the Available Commands Local console disabled by conflictH list config Using the List CommandExiting from the System Changing the System IdentityManually Logging Out If you are accessing the DSL routerAutomatically Logging Out ThenOverview of DSL Router Configuration Configuring the DSL RouterInterfaces for the DSL Router H DSL InterfaceEthernet and DSL Interface Identifiers Service Domain IP Address AssignmentsH Ethernet Interface Unnumbered DSL Interface Numbered DSL InterfaceSimplified Network Topology H Dynamic Host Configuration Protocol DHCP Server H DHCP Relay Agent H Address Resolution Protocol ARP H Proxy ARPIP Routing Network ConsiderationsProxy ARP Address Resolution Protocol ARPBasic NAT Network Address Translation NATNetwork Address Port Translation NAPT IP Options Processing Dynamic Host Configuration Protocol DHCP ServerApplications Supported by NAT Examples DHCP Relay AgentIP Filtering SecurityLand Bug/Smurf Attack Prevention H Land Bug/Smurf Attack Prevention ± Always presentRouted vs. Bridged PDUs If Using This Network Model3-10 Then These DSL Cards Can Be UsedConfiguration Examples DSL Router Configuration Examplesifn address eth1 155.1.3.254 ifn address dsl1 155.1.4.254 Basic Configuration Exampleip route create upstream eth1 nat basic map 192.128.1.1 10.1.3.2 10.1.3.5 nat basic enable Basic NAT Configuration ExampleNAT Mapping Public IP Addresses Private IP Addressesnat napt map tcp 10.1.3.4 23 nat napt enable NAPT Configuration ExampleNAPT Mapping Public IP Addresses Private IP Addressesip route create upstream eth1 155.1.3.253 proxy arp eth1 enable Unnumbered DSL Interface with Proxy ARP Configuration Exampleproxy arp dsl1 enable proxy arp dsl1 enable dhcp relay enable dhcp relay address DHCP Relay with Proxy ARP Configuration Exampleip route create upstream eth1 155.1.3.253 proxy arp eth1 enable nat basic address 192.128.1.0 nat basic enable DHCP Server with Basic NAT Configuration Exampledhcp server enable Public IP Addresses for Basic NATip route create 130.26.7.0 255.255.255.0 Downstream Router Configuration ExampleMonitoring the DSL Router Detecting ProblemsWhat to Monitor show interface Status of Interfacesshow interface eth1 dsl1 ± Ethernet Link up downshow statistics Interface Statisticsshow statistics eth1 dsl1 ip List of Discard Reasons Clearing Statisticsclear statistics eth1 dsl1 ip Table 5-1. Discard Reasons for the Ethernet Interface eth1 1 ofTable 5-2. Discard Reasons for the DSL Interface dsl1 1 of Table 5-1. Discard Reasons for the Ethernet Interface eth1 2 ofDiscard Reasons for the DSL Interface dsl1 Monitoring the DSL RouterTable 5-3. Discard Reasons for IP Discard Reasons for IP Table 5-2. Discard Reasons for the DSL Interface dsl1 2 ofMonitoring the DSL Router Discard Reasons for the DSL Interface dsl1Diagnostics and Troubleshooting Overview Diagnostics and TroubleshootingAlarms Inquiry show alarmsSystem Log syslog enable disableshow syslog syslog ip ip-addrsyslog level level SYSLOG Eventsshow log number Table 6-1. SYSLOG Messages 1 ofTable 6-1. SYSLOG Messages 2 of SYSLOG Message DisplayLevel DescriptionPing Test Results PingPing reply x.x.x.x bytes of data=nn Ping reply x.x.x.x REQUEST TIMED OUTTraceRoute Test Results TraceRouteTracing route to x.x.x.x over a max of nn hops with nnn byte packet Round Trip TimeCommand Line Interface Feature Command Line InterfaceRefer to Appendix B, Configuration Defaults & Command Line Shortcuts Navigation Command RecallDocument Conventions SyntaxConfiguration Control Commands Command Line Interface Commandsconfigure terminal factory RFC 1483 Encapsulationifn address eth1ifn dsl1ifn ip-address mask primary Interface and Service Domain IP Addressifn dsl1ifn eth1ifn primary ifn address dsl1 unnumbered Examples ifn address dsl1 135.300.41.8 ifn dsl1 primarydelete eth1ifn dsl1ifn IP Routing Tableip route create dest-ip dest-mask next-hop-ip remote Example Refer to Chapter 4, DSL Router Configuration Examplesip route delete upstream eth1ifn ip route create upstream eth1ifn next-hop-ipip route purge Example Refer to Chapter 4, DSL Router Configuration Examplesarp timeout complete time arp timeout incomplete timeproxy arp eth1 dsl1 enable disable ARP Tablenat napt enable nat basic enablenat timeout time nat basic address ip-addr ip-masknat napt delete udp tcp port nat basic delete private-ipExample nat basic map 192.128.1.1 Example nat basic deletedhcp server enable disable nat disableDHCP Server A-10DHCP Relay Agent dhcp relay enable disableA-11 dhcp server router ip-addressIP processing enable disable IP multicast enable disabletrap disable enable name of trap IP Packet Processingshow console Displays console enabled or console disabled show system Show Command Outputsshow config A-13A-14 show arp timeoutshow ip route ip-address show arpshow NAT napt A-15show traps show dhcp serverA-16 show alarms show syslog show log #show DHCP relay show interface show statisticsConfiguration Default Settings Configuration Defaults Command Line ShortcutsTable B-1. Default Configuration Settings Configuration OptionTable B-1. Default Configuration Settings 2 ofConfiguration Option Factory Default SettingTable B-2. Command Line Input Shortcuts 1 of Command Line Input Shortcuts1483encap llc vc arp purgeip route delete upstream eth1ifn ip route purge list config logout Table B-2. Command Line Input Shortcuts 2 ofnat basic enable nat disableshow interface dsl1 eth1 Table B-2. Command Line Input Shortcuts 3 ofshow nat basic napt show statistics dsl1 eth1 ip show syslog show system6371-A2-GB20-10 Configuration Defaults & Command Line ShortcutsSNMP Overview Traps & MIBsTraps Overview Table C-1. DSL Router Traps DSL Router TrapsTrap EventTrap # SeverityStandard MIBs MIBs OverviewMIB II RFC System GroupTable C-2. System Group Objects Setting/ContentsObject ssssssssssss Boot bb.bb.bb 2nd Boot xx.xx.xx DSPTable C-3. Interfaces Group Objects 1 of Interfaces Group RFCSetting/Contents ObjectSetting/Contents Table C-3. Interfaces Group Objects 2 ofObject DescriptionIP Group RFC Extension to Interfaces Table RFCTable C-4. Extension to Interfaces Table Table C-5. IP Group Objects 1 ofTable C-5. IP Group Objects 2 of IP CIDR Route Group RFCTable C-6. IP CIDR Route Group Objects 1 of Setting/ContentsTable C-6. IP CIDR Route Group Objects 2 of Transmission GroupSetting/Contents ObjectEthernet-Like MIB RFC SNMP GroupC-10 H Configuration MIB pdnConfig.mib H Device Diagnostics MIB pdndiag.mibH Interface Configuration MIB pdninet.mib H Interface Configuration MIB pdnIfExtConfig.mibC-12 Device Diagnostics MIBTable C-8. Application Test Group Objects 1 of Setting/ContentsTable C-8. Application Test Group Objects 2 of C-13Setting/Contents ObjectTable C-8. Application Test Group Objects 3 of C-14Setting/Contents configureC-15 Health and Status MIBTable C-9. Device Status Group Objects Table Setting/ContentsTable C-10. Device Configuration Copy Group Objects Table Configuration MIBC-16 Setting/ContentsTable C-11. Interface Configuration Group Objects Table Interface Configuration MIBARP MIB NAT MIBC-18 DHCP MIBDSL Endpoint MIB Table C-12. DSL Endpoint Configuration Group Objects TableC-19 Setting/ContentsC-20 SYSLOG MIBInterface Configuration MIB DSL Router Terminal Emulation Accessing the List Command OutputDSL Router Terminal Emulation Procedure Terminal Emulation ProgramsProcedure Index SymbolsNumbers IN-1IN-2 IN-3