Preparing for Configuration 

Router Port Number

The Work Before Starting Router

How to Get Help

Command Mode

Cancelling Command

Saving Configuration

This Document describes the information necessary for the first configuration of router, including the port number, the work that needs to be done before starting router and the introduction of command line interface.

 

Router Port Number

Rounter’s physical  Port Number shall be arranged in the form of <type><slot>/<port>. The comparison table of type and name is as follows:

Type of Port

Type Name

Type for Short

Serial Port

Serial

s

Synchronization Port

Serial

s

Asynchronou /Aux

Async

a

10M Ethernet

Ethernet

e

100M High-Speed Ethernet

FastEthernet

f

ISDN BRI

BRI

b

The fixed number is distributed to the value of Slot according to expansion slot of WIC/VIC from right to left in transverse  direction and from the bottom up longitudinal  direction . The fixed number for standard configuration is 0, WIC expansion slots or VIC expansion slots are numbered in the aforementioned  order commending from 1.

The value of port is numbered from right to left, starting from 0. If there is only one port, the port is numbered 0.

The number list for the product lines determined on the said numbering rule is as follows:

Product Type

Configuration

Serial Number

1720

Standard Configuration 10\100M Ethernet Port

FastEthernet0/0

10M Ethernet Port

Ethernet1/0

 Universal Serial Interface

Serial2/0Serial3/0

1750

Standard Configuration 10\100M Ethernet Port

FastEthernet0/0

Standard Configuration Aux Port

Async0/0

Slot for Interface Card

From right to left slot1~2

Slot for Network/Voice Interface Card Slot 1 and Slot 2

2620

 

 

Standard Configuration 10\100M Ethernet Port

FastEthernet0/0

Standard Configuration Aux Port

Async0/0

Slot for Interface Card

From right to left slot1~3

Slot for Network/Voice Interface Card Slot 1 and Slot 2

Interface Card for Expansion Slot: Slot 3

2621

Standard Configuration 10\100M Ethernet Port

FastEthernet0/0 FastEthernet0/1

Standard Configuration Aux Port

Async0/0

High-Speed Serial Port

Serial0/2Serial0/3

Slot for Interface Card

From right to left slot1~2

2630

Standard Configuration 10\100M Ethernet Port

FastEthernet0/0

Standard Configuration Aux Port

Async0/0

Slot for Interface Card

Two rows of slots, the bottom row of slots are number slot0~2 from right to left, the upper row of slots are number slot3~4 from right to left.

Slot for Network/Voice Interface Card: Slot 1 and Slot 3

Slot for Network/Voice Module: slot2 and slot 4

2640

Standard Configuration 10\100M Ethernet Port

FastEthernet1/0

Standard Configuration Aux Port

Async0/0

Slot for Interface Card

Two rows of slots, the bottom row of slots are number slot 2, the upper  row of slots are number slot3~4 from right to left.

2641

Standard Configuration 10\100M Ethernet Port

FastEthernet1/0,FastEthernet1/1

Standard Configuration Aux Port

Async0/0

Slot for Interface Card

Two rows of slots, the bottom row of slots are number slot 2, the upper  row of slots are number slot3~4 from right to left.

2650

 

Standard Configuration 10\100M Ethernet Port

FastEthernet0/0

Standard Configuration Aux Port

Async0/0

Slot for Interface Card

Two rows of slots, the bottom row of slots are number slot0~2 from right to left, the upper row of slots are numbered slot3~5 from right to left.

Slot for Network/Voice Interface Card: Slot 1 and Slot 4

Slot for Network/Voice Module: slot 2 and Slot 5 

Slop for High-Speed Ethernet Interface Card: Slot 3 

3660

 

Standard Configuration Aux Port

Async0/0

Slot for Interface Card

 

Three rows of slots, the bottom row of slots are number slot1~2 from right to left, the middle row of slots are numbered slot3~4, the upper row of slots are numbered slot5~6 from right to left. 

Note: The various compound card and modules are numbered in turn from right to left. The numbering rule for the compatible modules of NMWICFIC slot or types of interface card can be referred to the description of hardwares.

The Work Before Starting Router

The following steps shall be confirmed befor  starting the Router for Configuration

1.       The hardares of routes are put in rights places on the reuqirements specified in the manual

2.       The simulated program is installed at the terminal of PC

3.       Based on IP protocal, the following items is determined:

· IP Addrerss Allocation Planning

· Which kind of WAN Protocol that is to run at the port (such as Frame Relay, HDLC, X.25, etc) 

How to Get Help

the command can be entered  by inpputing question mark(?)and using direction key:

· When a question mark is entered, the list of current usable commands will be available immediately.  

    Router> ?

· Enter some already known characters, then enter question mark closely (no blank) the command starting with already known characters will be shown. 

    Router> s?

·  Enter command, followed closely by spacebar and question mark, list of command parameter will be  available. Router> show ?

· Press “Up” direction key, the entered commands will be displayed, and continue to press “Up” direction key, the more entered commands before will be shown.

Command Mode

Router’s command line interface is classified into multiple models. Each command model permits the different components to be configured with the router. The current usable commands dependents on the chosen command model . The list of current usable commands will be displayed by entering queston mark (?) under each command model. The following table lists the frequently-used command models:

Command Model

 Mode of Entry

Interface Prompt

 Mode of Quit

 Model of System Mornitoring and Control

When powe is on, user enter “aaa”

 

monitor#

Use the command “Quit”

 Uer Model

 Log on

router>

Use command “Exit or Quit”

Management Model

Input command “enter or enable” under user model

router#

Use command “Exit or Quit”

Overall Configuguration Model

Enter command “config” under management model

router_config#

Use command “exit” or “quit” or “Ctrl-Z” to restore management model directly.

Interface  Configuration Model

Under overall configuaratrion model, enter command “interface”, such as interface s1/0.

router_config_s1/0#

Use command “exit” or “quit” or “Ctrl-Z” to retore management model directly.

Port Configuration Model

Under global configuration model, enter command “interface”, such as “interface s1/0”

router_config_s1/0#

Restore to managemen model by using command “exit” or “quit” or “Ctrl-Z” directly.

Each command model prevents using some command subensembles. If trouble occurs after command is entered, the interfece prompt shall be checked and the question mark (?) shall be input for getting the list of  usable commands. Maybe a mistake is made in command model or syntax.

In the following examples, the new command model indicated by the changes in the “Notice” interface prompt shall be observed.

router> enter

Password: <enter password>

router# config

router_config# interface s1/0

router_config_s1/0# quit

router_config# quit

router#

Cancelling Command

If a command needs to be cancelled or default attribute needs to be retored, it can be done by adding key word “no” before most of commands

such as, no ip routing

Saving Configuration

In orfer to restore the orignal configuration quickly after the system is restarted or accidental power down, the changes in the configurations shall be saved. By using the command “write” under Management Model or Global Confuguraion Model, the changes in the configuration can be saved.