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Configuring the Router Card

Configuring the Router Card

After installing the Cisco 2518 and connecting a terminal or PC to the EIA/TIA-232 port on the management card, configure the Cisco IOS software.

The following procedures are required to configure the Cisco 2518 router card, and are explained in more detail later in this chapter:

Table 4-1 lists console commands used by the router/hub.


Table  4-1: Console Commands Used by the Router/Hub
Key Sequence or Command Action
Ctrl-E Stops the SNMP agent and displays the <<C>> prompt.
Ctrl-Q Exits the router program
hellottt Wakes up the SNMP agent
agent Restarts the SNMP agent
reset Resets the network management card
router Connects to the router card

Connecting to the Management and Router Cards

Connect a terminal or PC to the EIA/TIA-232 console port of the management card as described in the chapter "Installing the Router/Hub."

Step 1 Apply power to the Cisco 2518 router/hub. Wait approximately two minutes for the system to initialize and complete the self-tests.

Step 2 After the SNMP manager starts, press Ctrl-E to exit to the console prompt, <<C>>.

Note If Ctrl-E has no effect, the console may have timed out. Type hellottt to reactivate the console, then type Ctrl-E to escape to the console prompt.

Step 3 At the console prompt, enter the following command to connect to the router card console:

router


You can now begin configuring the router card.


Configuring the Router Card

This section describes the following procedures:

You should follow the procedure that best fits the needs of your network configuration.

Note When you finish configuring the router card, enter Ctrl-Q to return to the console prompt.

Configuring the Router Card Manually

If you do not plan to use AutoInstall, do not connect the router card's serial (WAN) cable to the CSU/DSU or the router card itself. This will prevent the router card from attempting to run the AutoInstall process. The router card will attempt to run AutoInstall whenever you start it if the serial (WAN) connection is connected on both ends and the router card does not have a configuration stored in NVRAM.

It can take several minutes for your router card to determine that AutoInstall is not set up on a remote TCP/IP host. After the router card determines that AutoInstall is not configured, it will default to the setup routine. If the serial (WAN) cable is not connected, the router card will boot from Flash memory and go into the setup routine.

Note You can run the setup routine any time you are at the enable prompt (#) by entering the setup command.

When you have booted from Flash memory, the following information appears after about 30 seconds.

Step 1 If you are not connected to the router card, use the router command from the management card console:

Step 2 Enter the initial configuration dialog:



Step 3  Configure global parameters. Choose which protocols to support on your Ethernet interface. For IP-only installations, you can accept the default values for most of the questions. A typical configuration follows:








Step 4  Configure the PCbus. The PCbus is used to communicate with the router/hub management SNMP agent. The PCbus must have a unique IP address on a subnetwork. The management card SNMP agent determines its IP address by adding 1 to the PCbus IP address that you assign. For more information, see the section "PCbus ARP" in the chapter "Configuring the Cisco 2518 SNMP Agent with SPSET."





Caution The IP address you assign to the router's PCbus interface must be at least one less than the maximum.


Step 5  Configure the serial interfaces:





Step 6  Configure the Ethernet interface:





Step 7  Complete the configuration:





Step 8  Now the configuration you entered is displayed and you are asked if you want to use the displayed configuration. If you answer no, you can begin the configuration again and make any changes you want. If you answer yes, then this configuration will be entered and saved in the configuration database.



 



Step 9  Enable PCbus management on the router card:



Step 10  Write the configuration to memory:



 The router is now configured.



 Configuring the Router Card Using AutoInstall


 The AutoInstall process is designed to configure the router card automatically after connecting to your wide-area network (WAN). For AutoInstall to work properly, a Transmission Control Protocol/Internet Protocol (TCP/IP) host on your network must be preconfigured to provide the required configuration files. The TCP/IP host may exist anywhere on the network if the following two conditions are maintained:


    

    

  1. The host must be on the opposite side of the router card's serial connection to the WAN.

    

    

  2. User Datagram Protocol (UDP) broadcasts to and from the router card and the TCP/IP host must be enabled. 

    



 This functionality is coordinated by your system administrator at the site where the TCP/IP host is located. Do not attempt to use AutoInstall unless the required files have been provided on the TCP/IP host.


 To prepare your router card for the AutoInstall process:


Step 1  Shut down the Cisco 2518.


Step 2  Place the Cisco 2518 in a location that will allow the serial (WAN) cable to make a connection between the router card and the CSU/DSU without placing a strain on the cable.


Step 3  Attach the serial cable or cables to the Cisco 2518 and the CSU/DSU.


Step 4  The BRI port, which is a female RJ-45 connector (see Figure 4-1), is located on the interface panel of the daughter card above the serial 1 port.


 Using the appropriate cable, connect the BRI port to the ISDN through the NT1. The common carrier will provide the NT1 connection worldwide, except in North America where the NT1 is owned by individual customers.




 The router card will load the operating system image from Flash memory. If the remote end of the WAN connection is connected and properly configured, the AutoInstall process will begin. 





Figure 4-1: BRI Port--RJ-45 Female Connector



Warning Network hazardous voltages are accessible in the BRI cable. If you detach the BRI cable, detach the end away from the router card first to avoid possible electric shock. Network hazardous voltages also are accessible on the router card in the area of the BRI port (RJ-45 connector), regardless of when power is turned off. (See Figure 4-2.) To see translated versions of this warning in multiple languages, see the appendix "Translated Safety Warnings."



Figure 4-2: Network Hazardous Voltage Area Near the BRI Port



 The router card will send a Serial Line Reverse Address Resolution Protocol (SLARP) packet over the serial line. When the packet reaches the opposite end of the WAN connection, the remote router will reply with the IP address of its serial interface. The router card will increment the serial interface address by one and assign this address to its own serial interface. This process will take approximately one minute.



Note The remote router's IP address must have a 1 as the fourth byte--for example, 127.100.21.1.



 After the serial interface on the router card has been assigned a valid serial interface IP address, it will resolve its host name. It will send a Trivial File Transfer Protocol (TFTP) request on the serial line for the configuration file called network-confg. If the TCP/IP host responds with this file, AutoInstall will search the file's contents for the host name associated with its IP address.


 If the TCP/IP host does not respond with the network-confg file, AutoInstall will broadcast a reverse domain name server (DNS) request containing the IP address for the router card's serial port that it was assigned over the network. If the DNS services have been set up, AutoInstall will resolve the router card's name from this file. After the IP address and host name have been found, AutoInstall will broadcast a TFTP request to the TCP/IP host for the file called hostname-confg. If this file has been set up by the system administrator, it will be downloaded automatically to the router card's memory, completing the configuration.


 If the AutoInstall completed successfully, you still need to write the configuration data to the router card's nonvolatile random-access memory (NVRAM) and reset the configuration registers. Perform the following steps to complete these tasks:


Step 1  Enter the enable command to enter enable mode. Configuration changes can only be made in enable mode.



Step 2  Enter the enable password that was configured into the router card by the AutoInstall process:



Step 3  Enter the following command at the prompt: 



 This will save the configuration settings that the AutoInstall process created in the router card. If you fail to do this, your configuration will be lost the next time you reload the router card.





Step 4  You can check the value of these settings by entering the show version command at the Hostname# prompt:



 If the AutoInstall feature is not set up, or if your router card is unable to locate the appropriate files, you should use the manual configuration with or without the setup utility. 



 For More Information


 For more information on router software configuration, refer to the following Cisco publications:


 Configuration Builder Getting Started Guide


 Router Products Getting Started Guide


 Router Products Configuration Guide 


 Router Products Command Reference


 Troubleshooting Internetworking Systems (as needed)


 To order UniverCD, Cisco's online library of product information, or printed documentation, refer to the section "Ordering Cisco Documentation," which is in the warranty booklet that accompanied your Cisco 2518.


 













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