Nokia M1112 manual Internal host/gateway interface, Data VCC operation, Routing, Bridging

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Applications and features

Internal host/gateway interface

There is a special host/gateway logical IP interface within M1112 called VBRIDGE. This interface has a specific purpose in M1112. In applications where some ATM virtual channel connections are used for bridging IP traffic and some other ATM virtual channel connections are used for routing IP traffic, the VBRIDGE interface must be used instead of LAN IP address. Alternatively, this interface is used in bridge only application when the IP address is required for remote management purposes.

Data VCC operation

M1112 supports the following encapsulations in each ATM data virtual channel individually:

DRFC2684 LLC encapsulation for bridged IP (ETH-LLC)

DRFC2684 LLC encapsulation for routed IP (IP-LLC)

DRFC2364 Virtual circuit multiplexed PPP over AAL5 (PPP-VC)

DRFC2364 Virtual circuit multiplexed PPP over AAL5 used to tunnel LAN/VBRIDGE PPTP packets (TUNNELED-PPP-VC)

If an IP address is given to a virtual channel interface and bridging is enabled at that interface, then IP data at that interface is routed and all other protocols are bridged. The only encapsulation which allows both bridging and routing simultaneously is ETH-LLC. For example, it is possible to route ETH-LLC encapsulated packets and at the same time bridge, for example, PPPoE packets (PPPoE packets are transported directly over Ethernet frame, not within IP packets).

2.2.2Routing

Routing is based on routing entries in a routing table. Static routes are added via the management interface and dynamic routing is done using RIP and RIPv2. Routing is done between the Ethernet 10Base-T interface and the virtual channel connection (VCC) of the ATM/ADSL interface. M1112 supports up to 8 simultaneous VCCs.

M1112 supports IGMP (Internet Group Management Protocol) proxy receive function for IP multicast applications.

2.2.3Bridging

Bridging is supported to provide full protocol transparency. Bridging can be used simultaneously with IP routing. M1112 works as a

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Contents Nokia M1112 M1112 M1112 Administrator Manual Document History Document Date CommentM1112 Administrator Manual Contents Chapter Interfaces and indicator lights Appendix a Technical specifications Viii Chapter Introduction to Nokia M1112 Nokia M1112M1112 Administrator Manual Internet access Applications1High-speed Internet access Remote work RAN L2TPFeatures LAN interconnectionInterfaces Route/tunnel IP only LAN interface Route/tunnel IP, bridge all other including IPRouting Internal host/gateway interfaceData VCC operation BridgingNetwork Address Port Translation Dynamic Host Configuration Protocol ATM and AdslPoint-to-Point Tunneling Protocol Pptp Weighted Fair Queueing Class of Service Point-to-Point Protocol over Ethernet PPPoEPayload encapsulations Management Dedicated management channel6Dedicated management channel M1112 Administrator Manual Chapter Interfaces and indicator lights InterfacesAdsl interface Signal Direction MDI signalEthernet interface EthernetCommand line interface SignalSignal Direction MDI signal M5112-ter Minal Indicator lights 5M1112 front panel indicatorsOff Hardware malfunction during startup M1112 Administrator Manual Chapter Installing Nokia M1112 M1112 default settings192.168.1.1 Config mode level Parameter SettingM1112 255.255.255.0Step-by-step installation procedure Managing M1112 for instructions on how to configure M1112 Chapter Managing M1112 Operational examplesBlock diagram Routing/tunneling IP onlyRouting/tunneling IP, bridging other protocols Routing/tunneling IP, bridging all protocols including IP Typical configuration tasks Configuring Dhcp and DNSBridging only Configuring static and dynamic routing File system and downloading new firmware using Tftp Use CLI to issue Downloading configuration or application from monitorBrowser management Opening a connection Main Service Providers pages 3Service Providers page with PPP configuration4Service Providers page with Pptp configuration Local Network pages Local portsM1112 Administrator Manual 6Local Network Dhcp Napt 8Local Network Routing Statistics Restart 10 RestartCommand line interface CLI Save ConfigSetting Value M1112 Administrator Manual Main mode commands Command Show diagnostic logCommand Show DSL line status Command Show Ethernet interface statusCommand Show ATM status Command Show bridge interface statusManaging M1112 Command Show bridging statistics Command Show bridging tableCommand Show Pptp information Command Show Address Resolution Protocol ARP table Command Show IP interfacesCommand Show IP statistics Command Show IP cache table and statisticsCommand Show IP routing table VbridgeCommand Show Internet Control Message Protocol statistics Command Show User Datagram Protocol statisticsCommand Show Transmission Control statistics Command Show Routing Information Protocol statisticsCommand Show Snmp statistics VCC3 Command Show Domain Name Server entry table and statis Tics Command Show M1112 information Command Show running configuration Command Show startup configuration Command Show default configurationCommand Show configuration file Command Show debug statusCommand Ping Command ATMping Command Switch off debugCommand Show contents of file directory Command Copy fileCommand Rename file Command Delete fileCommand Download new firmware Command Execute a command batch Command Save log to fileCommand Save log to a default file Command Save configuration to file Command Restore configurationCommand Clear counters Command Reset subsystem Command LogoutCommand Fast restart M1112 Command Switch to configuration mode Configuration mode commandsCommand Restart M1112 Command Return to root levelRoot level commands Command Show current running configurationSystem level commands Command Assign hostnameCommand Set configuration session timeout Password level command Command Assign new passwordEthernet level commands Command Switch on/off bridgingCommand Switch on/off IP function in Ethernet interface M1112conf-eth#ip rip-receive VCC ATM channel commands Command Activate ATM channelCommand Switch on/off PPP authentication Command Set PPP usernameCommand Set PPP password Command Switch on/off IP function on ATM channel Command Switch on/off RIP send function on ATM channelCommand Switch on/off RIP receive function on ATM channel Command Enable Network Address Port TranslationCommand Set server support entry Command Disable/enable management through the ATM chan NelCommand Switch on/off RIP receive function in vbridge Vbridge commandsCommand Switch on/off IP function in vbridge Command Disable/enable management through the vbridgeDedicated management channel commands Command Switch on/off VCC-to-VCC bridgingCommand Activate dedicated management channel Common commands Command Set PPP packet sizeCommand Set PPP restart time parameter Command Set max-config parameter valueCommand Set max-terminate parameter value Command Set max-failure parameter value Command Switch on/off IP cacheCommand Add/delete IP route Command Define and activate host acces list Command Switch on/off dynamic host configuration protocolCommand Set Dhcp address range Command Set DNS address for Dhcp clientsCommand Set Dhcp server lease time Command Set Dhcp pool domain nameCommand Set Domain name server address Command Switch on/off weighted fair queueing M1112 Administrator Manual Ethernet interface FeaturesATM over Adsl RoutingDedicated ATM management channel Command line interface CLI for local managementIndicator lights Management through payloadAmbient conditions Mechanical construction and power supplyAmbient conditions, EMC and safety Mechanical constructionSafety Digital Subscriber Line Access Multiplexer Asynchronous transfer modeCommand line interface Intergrated services digital networkTerms 10Base-T Encapsulation Multiplexer Web browser Glossary-6