Quickly complete Cisco router installation and maintenance

This article describes how to quickly install and maintain a vro from the aspects of control port interface connection, initialization and installation, and troubleshooting and detection of common routing faults. See the detailed description below.

A terminal or PC configured with a Cisco router must also use a valid power supply. Cisco synchronous serial interfaces are commonly used. Different interfaces can be obtained through different cables. Many may not know much about the installation and maintenance of Cisco routers. The following describes how to quickly complete the installation and maintenance of Cisco routers. As the core device of network communication, Cisco routers are widely used. The following is my experience in practice:

Control port interface practices and connections

Connect one end of the control cable RJ45 in the Cisco2500/1000 series router accessories to the Cisco CONSOLE port, and the Cisco router connects one end of the DB25 of the MODEM cable to the Cisco CONSOLE port, one end of DB9 is connected to COMl/2 of the PC. Set the simulation TERMINAL program on the PC: for example, use the TERMINAL program in WINDOWS, use COMl/2, 9600BPS, 8 data bit, 2 stop bit. Others use the default value. After the control port is connected, turn on the power switch of the router.

Initialize Installation

The vro must use a valid power supply. Generally, the zero-ground voltage of the power supply is less than 4 volts, and the zero-fire/ground-fire voltage is 220 volts. Ground Line Protection basically requires that the devices connected to the internet have a ground line, including hosts, workstations, hubs, switches, routers, and MODEM connected To routers. A terminal or PC configured with a Cisco router must also use a valid power supply. Cisco synchronous serial interfaces are commonly used. Different interfaces can be obtained through different cables. Such as RS232 and V.35. In addition, the synchronous serial interface cable of the Cisco router is specially premade. The system automatically enters the dialog setup status during the first installation. Answer the following questions in sequence: vro name, encrypted super logon password, super logon password, remote logon password, dynamic routing protocol, and interface configuration. Then, answer YES to save the configuration. Wait for 2 minutes and press Enter. Enter the vro name, enter the ENABLE command, and enter the super logon password. The vro name # is displayed #.

Configure synchronous dialing, leased line, and DDN connections

IPX routing

Interface serial 0 interface serial 0

Ip address l.1.1.1 255.0.0.0 ip address l.1.1.2.

255.0.0.0

Ipx network lll IPX

NETWORK lll

Interface ethernet 0 interface ethernet 0

Ip address 12.1.1.1 255.0.0.0 IPADDRESS 16.1.1.1

255.0.0.0

Ipx network 123456 IPX

NETWORK 12.1TWt) KK 987654

Router igrp 1 ROUTER

IGRP l

NETWORK l.0.0.0 NETWORK l.0.0.0

NETWORK 12.0.0.0 NETWORK

16.0.0.0

Configure X.25 connections

IP ROUTIKG IP

ROUTING

Interface serial 0 interface serial 0

Ip address 1.1.1.1 255.0.0.0 ip address 1.1.1.2

255.0.0.0

ENCAPSULATIO X25 ENCAPSULATION X25

X25 ADDRESS 32699X25 ADDRESS 32688

X25 HTC 16X25 HTC l6

X25 IDLE

6X25 IDLE 6

X25 map ip l.1.1.2 32688 broadcast X25 map ip l.1.1.1

32699 broadcast

Interface ethernet 0 interface ethernet 0

Ip address 12.1.1.1 255.0.0.0 ip address 16.1.1.1 255.0.0.0

Router igrp 1

NETWORK l.0.0.0 NETWORKl.0.0.0

NETWORK l2.0.0.0 NETWORK l6.0.0.0.

Router troubleshooting methods

First, check the status of the MODEM. If the DCD of the MODEM is not on, the connection is faulty. Check the connection first. Check the cable connection of the Cisco router. Connect the control terminal to the vro. Press enter to enter the vro name. Enter show interface serial 0 to view the status of the first line, line, and line protocol. If line is up, DCD signal of the Line Interface received by the router; otherwise, the DCD signal of the line interface is low. If line protocol is up, the line protocol of the line interface is successfully matched. Otherwise, the line Protocol match fails. Hit show interface ethernet 0 if line protocol is up, the line interface is connected normally. The communication system may have some faults during operation. How to quickly locate the fault and modify it in time is the key to maintaining the normal operation of the system, we will introduce troubleshooting methods for ports, lines, and links.