Cisco Systems IC-23 manual Installing a LAN Extender at a Remote Site, Discovering the MAC Address

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Configuring LAN Interfaces

Configuring a LAN Extender Interface

Figure 4 Expanded View of Cisco 1000 Series LAN Extender Connection

Other

 

 

 

 

networks

 

 

 

B Ethernet

 

LEX

A

Serial

Core Router

LAN Extender

 

 

 

 

Virtual Ethernet connection

Management of the LAN Extender Interface

Remote

LAN

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Although there is a physical connection between the core router and the LAN Extender, what you actually manage is a remote Ethernet LAN. Figure 5 shows the connection you are managing, which is a LAN Extender interface connected to an Ethernet network. The virtual Ethernet connection (the serial interface and LAN Extender) has been removed from the figure, and points A and B, which in Figure 4 were separated by the virtual Ethernet connection, are now adjacent. All LAN Extender interface configuration tasks described in this chapter apply to the interface configuration shown in Figure 5.

Figure 5 LAN Extender Interface Connected to an Ethernet Network

Other networks

Core Router

LEX

A B Ethernet

 

 

Remote

LAN

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Installing a LAN Extender at a Remote Site

To install a LAN Extender at a remote site, refer to the Cisco 1000 Series Hardware Installation publication.

Discovering the MAC Address

After the LAN Extender has been installed at the remote site, you need to obtain its MAC address. Each LAN Extender is preconfigured with a permanent (burned-in) MAC address. The address is assigned at the factory; you cannot change it. The MAC address is printed on the LAN Extender’s packing box. (If necessary, you can also display the MAC address with the debug ppp negotiation command.) The first three octets of the MAC address (the vendor code) are always the hexadecimal digits 00.00.0C.

Upgrading Software for the LAN Extender

You can upgrade software for the LAN Extender on the host router with a TFTP server that is local to the host router.

The LAN Extender and core router communicate using the Point-to-Point Protocol (PPP). Before you can configure the LAN Extender from the core router, you must first enable PPP encapsulation on the serial interface to which the LAN Extender is connected.

Cisco IOS Interface Configuration Guide

IC-48

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Contents Configuring an Ethernet or Fast Ethernet Interface IC-23Ethernet and Fast Ethernet Interface Configuration Task List IC-24IC-25 Specifying an Ethernet or Fast Ethernet InterfaceSpecifying an Ethernet Encapsulation Method IC-26 Specifying the Media and Connector TypeSpecifying Full-Duplex Operation IC-27 Configuring Fast Ethernet 100BASE-TExtending the 10BASE-T Capability Configuring PA-12E/2FE Port Adapter IC-28Configuring the PA-12E/2FE Port Adapter IC-29IC-30 Monitoring and Maintaining the PA-12E/2FE Port Adapter IC-31IC-32 IC-33 Configuring Fast EtherChannelConfiguring the 100VG-AnyLAN Port Adapter Fast EtherChannel Configuration Task List IC-34Configuring the Port-Channel Interface IC-35Configuring the Fast Ethernet Interfaces IC-36Configuring a Fiber Distributed Data Interface IC-37Using Connection Management Information IC-38IC-39 Fddi Configuration Task ListSpecifying a Fddi IC-40 Enabling Full-Duplex Mode on the FddiEnabling Fddi Bridging Encapsulation Controlling the Transmission Timer Setting the Token Rotation TimeSetting the Transmission Valid Timer Modifying the C-Min TimerSetting the Bit Control Modifying the TB-Min TimerModifying the Fddi Timeout Timer Controlling SMT Frame ProcessingStarting and Stopping Fddi Setting Fddi Frames Per Token LimitControlling the CMT Microcode IC-43Preallocating Buffers for Bursty Fddi Traffic Configuring a Hub InterfaceControlling the Fddi SMT Message Queue Size IC-44Disabling or Enabling the Link Test Function Enabling a Hub PortDisabling or Enabling Automatic Receiver Polarity Reversal IC-45IC-46 Enabling Source Address ControlEnabling Snmp Illegal Address Trap Expanded View of the Connection to a Core Router Configuring a LAN Extender InterfaceConnecting a LAN Extender to a Core Router IC-47Upgrading Software for the LAN Extender Installing a LAN Extender at a Remote SiteDiscovering the MAC Address Management of the LAN Extender InterfaceConfiguring the LAN Extender IC-49IC-50 LAN Extender Interface Configuration Task ListConfiguring and Creating a LAN Extender Interface Defining Packet Filters IC-51Filtering by MAC Address and Vendor Code IC-52Controlling Priority Queueing IC-53Controlling the Sending of Commands to the LAN Extender IC-54IC-55 Restarting the LAN ExtenderDownloading a Software Image to the LAN Extender Troubleshooting the LAN Extender IC-56System OK IC-57Configuring a Token Ring Interface IC-58Specifying a Token Ring Interface Token Ring Interface Configuration Task ListDedicated Token Ring Port Adapter Enabling Early Token ReleaseEnabling Token Ring Concentrator Port LAN Interface Configuration ExamplesConfiguring PCbus Token Ring Interface Management Monitoring and Maintaining the PortPA-12E/2FE Port Configuration Examples Ethernet Encapsulation Enablement ExampleFull Duplex Enablement Operation Example IC-61PA-VG100 Port Adapter Configuration Example IC-62Fast EtherChannel Configuration Examples IC-63Fddi Frames Configuration Example IC-64Hub Port Shutdown Examples Hub Configuration ExamplesHub Port Startup Examples IC-65Snmp Illegal Address Trap Enablement for Hub Port Example LAN Extender Enablement Interface ExampleLAN Extender Interface Access List Examples MAC Address Filtering ExampleEthernet Type Code Filtering Example IC-67IC-68

IC-23 specifications

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