ELSA manual Content, Elsa Cable Modem

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Content	V
Content
Introducing the ELSA MicroLink Cable	1
The ELSA MicroLink Cable takes the stage	1
What does the unit look like?	1
Node or hub?	3
The highlights of the ELSA MicroLink Cable	4
Fast Internet	4
Internet at all times—always online	5
More than just Internet	5
CE conformity and FCC radiation standard	7
Installation and Configuration	9
First Steps	10
Quick Start: Quick configurations	11
Preparations	11
Configuration as a bridge	11
Configuration as a router	13
Set up the workstation computers (Windows 95 or 98)	15
Configuration modes	17
The user-friendly method: inband	17
Requirements for inband configuration	17
Alternatively: addresses can be managed by the DHCP server	17
Starting inband configuration using ELSA LANconfig	18
Start up inband configuration using telnet	18
Configuration commands	19
What's happening on the line?	21
Trace Outputs	21
New firmware with FirmSafe	22
This is how FirmSafe works	22
How to load new software	23
Configuration using SNMP	24
General	24
Accessing tables and parameters using SNMP	25
The Management Information Base (MIB)	27
Operating modes and functions	29
Security for your configuration	29
Password protection	29
Login barring	29
Access control via TCP/IP	30

English

ELSA Cable Modem

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Contents Manual Sonnenweg ELSA, IncAachen GermanyIntroducing the Elsa MicroLink Cable Thank you for placing your trust in this Elsa productPage Elsa Cable Modem ContentVI Content Setup/SNMP-module Viii Content Elsa MicroLink Cable What does the unit look like?Introducing the Elsa MicroLink Cable Sync Meanings of the specific blink codesThese LEDs show the corresponding network controller status BC D E F GNode or hub? Highlights of the Elsa MicroLink CableFast Internet Cable networkInternet at all times-always online Regional contentMore than just Internet BackboneProxy servers CE and FCC CE conformity and FCC radiation standardIntroducing the Elsa MicroLink Cable Elsa MicroLink Cable Installation and configurationFirst Steps Configuring the Elsa MicroLink CablePreparations Quick Start Quick configurationsConfiguration as a bridge LAN Off you go into the Web with a whole new sensation of speed Configuration as a routerOn the Router tab, enable the IP Router option Obtain IP addresses automatically use Dhcp TCP/IP installationConfiguring fixed IP addresses not using Dhcp Checking the IP configuration User-friendly method inband Requirements for inband configurationConfiguration modes Start up inband configuration using telnet Starting inband configuration using Elsa LANconfigThis command Means this For instance Configuration commandsSet/se/snmp/admin The Administrator Command to call up a trace follows this syntax How to start a traceWhats happening on the line? Trace OutputsExamples New firmware with FirmSafeThis is how FirmSafe works Elsa LANconfig How to load new softwareTftp Configuration using Snmp GeneralCommand Target/Source Function Accessing tables and parameters using SnmpAccess protection in Snmp IP address IP-netmask Router name Distance Deleting rows in tables using SnmpAppending rows to tables using Snmp Management Information Base MIB Error messages via Snmp trapConfiguration modes Password protection Security for your configurationLogin barring Operating modes and functionsGlobally to Access control via TCP/IPSecurity for your LAN Hiding place-IP masquerading NAT, PAT EncryptionTCP/IP packet filters IP address IP netmask Router Dis Tance IP routingIP routing table 192.168.130.0 255.255.255.0 IP address IP netmask Router name Dist This is what happensWhat information is propagated by IP/RIP? Dynamic routing with IP/RIPWhat do the entries mean? IP address IP netmask Time Distance RouterInteraction of static and dynamic tables Local routingTwo addresses for the router IP masquerading NAT, PATSimple and inverse masquerading How does IP masquerading work?Cable TV net WorkOnly small difference is that Which protocols can be transmitted using IP masquerading?DNS forwarding Rator BridgingWhat are the filter options? Automatic address administration with DhcpDhcp server Dhcp clientCable modem really belongs to two LANs IP address Network mask Broadcast addressDhcp on, off or auto? Default state is autoHow are the addresses assigned? IP address assignmentNetwork mask assignment Default gateway assignmentBroadcast address assignment DNS server assignmentPriority for a workstation-overwriting an assignment Priority for the Dhcp server Request assignmentOperating modes and functions Operating modes and functions Elsa MicroLink Cable Two standards get around this problem AccessCable modem technology StandardsOperator Work Registration in the cable networkNetwork of the cable network Cable TV net Registration Connection modes Network technologyNetwork and its components Host Kinds of networks IP addressingThis address Bytes Looks like this in bits ExamplesSame IP address, this time with another netmask 10.0.0.0 255.0.0.0 IP address Netmask RemarkIP routing and hierarchical IP addressing There are two considerations when using these IP addressesHost Smith External host Marketing Example Expansion through local networks 80-C7-6D-A4-6E Why a LAN is called multiprotocol-capableEasy as possible That is processed by all computers in the LANLAN as easy as possible Data transfer within the LANInterface only understands MAC addresses Host Smith LAN coupling on MAC basis Data transfer from the LAN onto the InternetTechnical basics Elsa MicroLink Cable Appendix Technical dataService Package contentsWarranty coverage Warranty conditionsWarranty period Warranty procedureAdditional regulations Operating mistakesTypenbezeichnung Declaration of conformityAppendix Elsa MicroLink Cable Index 32, 40 Gateway Heap reserve Inde7017, 32 17, 18Trace SetupInde72 Wireless linksDescription of the menu options R73 SymbolsOverview of the menus R74 Description of the menu optionsStatus Running status displays StatusDescription of the menu options R75 Status/Current-time Status/Operating-timeStatus/Cable-statistics R76 Description of the menu optionsLAN-statistics Running status displays Status/LAN-statisticsDescription of the menu options R77 R78 Description of the menu options Status/Bridge-statisticsCannot be modified manually Bridge-statistics Running status displaysDescription of the menu options R79 Status/TCP-IP-statisticsStatus/TCP-IP-statistics/ARP-statistics These statistics include the following valuesStatus/TCP-IP-statistics/ICMP-statistics R80 Description of the menu optionsStatus/TCP-IP-statistics/IP-statistics Status/TCP-IP-statistics/TFTP-statistics Description of the menu options R81Status/TCP-IP-statistics/TCP-statistics Status/TCP-IP-statistics/DHCP-statistics R82 Description of the menu optionsDescription of the menu options R83 Status/IP-router-statisticsShrinks accordingly. It has the following layout IP-router-statistics Statistics from the IP router areaStatus/IP-router-statistics/RIP-statistics R84 Description of the menu optionsProtocol LAN-tx Cable-tx IP-address IP-netmask Time Distance RouterConfig-statistics Remote configuration statistics Status/Config-statisticsStatus/Queue-statistics Description of the menu options R85IPr-RIP-queue-packets R86 Description of the menu optionsStatus/Init-status Status/MCNS-statisticsDescription of the menu options R87 MCSN-statisticsSystem configuration SetupStatus/DHCP-client-statistics R88 Description of the menu optionsSetup/LAN-module Setup/Cable-moduleEntering the following command Default configuration, no name is enteredR90 Description of the menu options Setup/Bridge-moduleMAC-address field Setup/TCP-IP-moduleDescription of the menu options R91 R92 Description of the menu options Configuration, the TCP/IP module is activatedDescription of the menu options R93 Configuration, the IP router module is activated Setup/IP-router-moduleIP-address Node-ID Last-access Connect IP-router-module IP router module settingsIP-address IP netmask Router-name Distance Description of the menu options R95R96 Description of the menu options Setup/IP-router-module/Routing-methodRouting-method Routing method settings Different settings have the following meaning Setup/IP-router-module/RIP-configurationSettings have the following meaning Description of the menu options R97Following layout Setup/IP-router-module/MasqueradingR98 Description of the menu options Description of the menu options R99 Setup/IP-router-module/firewallR10 Description of the menu options Setup/DHCP-server-module Setup/SNMP-moduleDescription of the menu options R10 On The device operates as a Dhcp serverR102 Description of the menu options Default value of 6000 minutes equals approximately 4 daysOff The device does not operate as a Dhcp server Network mask is assigned in the same way as the IP addressIP-address Node-ID Timeout Hostname Type Setup/Config-moduleConfig-module Configuration module settings Description of the menu options R103R104 Description of the menu options Firmware Display and keyboard settingsFirmware Position Status Version Date Size Index Description of the menu options R105Module Version Other This option allows you to reboot the deviceR106 Description of the menu options Other menu allows you to manage the following functions