C H A P T E R 8

Troubleshooting Cisco 1800 Series Routers (Modular)

If you encounter problems with your Cisco 1800 series integrated services router (ISR) (modular), the information in this chapter can help you isolate problems in the router or eliminate the router as the source of the problem.

This chapter contains the following sections:

Problem Solving, page 8-1

Reading LEDs, page 8-4

System Messages, page 8-5

Recovering a Lost Password, page 8-6

More Troubleshooting Help, page 8-6

Note To troubleshoot interface cards, see Overview of Cisco Interface Cards for Cisco Access Routers.

If you cannot locate the source of the problem, contact a Cisco customer service representative for information on how to proceed. For technical support information, see the “Obtaining Documentation and Submitting a Service Request” section on page 1-15. Before you call, have the following information ready:

Chassis type and serial number

Maintenance agreement or warranty information

Type of software and version number

Date you received the router

Brief description of the problem

Brief explanation of the steps you have taken to isolate the problem

Problem Solving

The key to problem solving is to isolate the problem to a specific subsystem by comparing what the router is doing to what it should be doing.

The LEDs on the router aid you in determining router performance and operation. The LEDs are described in the “Reading LEDs” section on page 8-4.

Cisco 1800 Series Routers (Modular) Hardware Installation Guide

 

OL-5876-03

8-1

 

 

 

Page 73
Image 73
Cisco Systems CISCO1841-HSEC/K9-RF manual Troubleshooting Cisco 1800 Series Routers Modular, Problem Solving

CISCO1841-HSEC/K9-RF specifications

The Cisco Systems CISCO1841-HSEC/K9-RF is a versatile and robust router designed to meet the demands of small to medium-sized businesses and branch offices. This model is part of the Cisco 1800 Series Integrated Services Routers, which are known for their performance, security features, and scalability, making them ideal for organizations seeking to enhance their network infrastructure.

One of the main features of the CISCO1841-HSEC/K9 is its modular architecture. This design allows businesses to customize and expand their networks according to changing needs by adding various modules and interfaces. The router supports multiple WAN interfaces, which include serial, Ethernet, and DSL, providing flexible connectivity options to accommodate various networking scenarios.

The CISCO1841-HSEC/K9 also boasts an integrated security architecture. This router is equipped with advanced security features, including firewall capabilities, VPN support, and intrusion prevention systems. These technologies ensure that data is protected while being transmitted across the network. The built-in security features help organizations safeguard sensitive information against potential threats and cyberattacks.

In terms of performance, the CISCO1841-HSEC/K9 is powered by a high-speed processor and dynamic routing capabilities, which allow it to efficiently handle high volumes of traffic without compromising performance. The router supports various routing protocols, including EIGRP, OSPF, and BGP, facilitating seamless data flow and efficient route management.

Another noteworthy characteristic of the CISCO1841-HSEC/K9 is its support for voice and video services. This capability enables businesses to deploy unified communications applications, such as VoIP and video conferencing, enhancing collaboration among team members and improving overall productivity.

Moreover, the router is designed for easy management and monitoring. Cisco’s IOS software provides a user-friendly interface, allowing network administrators to configure, operate, and troubleshoot the network with ease. The router also supports Cisco’s Smart Install feature for simplified deployment and management.

In summary, the Cisco Systems CISCO1841-HSEC/K9-RF is a powerful and adaptable router that combines security, flexibility, and performance. Its modular design, robust security features, support for various routing protocols, and capabilities for multimedia applications make it a compelling choice for businesses looking to enhance their network infrastructure while addressing current and future demands.