Chapter 8 Troubleshooting Cisco 1800 Series Routers (Modular)

Recovering a Lost Password

The terminal should display one of the following prompts:

Router> (indicates the user EXEC command mode)

or

Router# (indicates the privileged EXEC command mode)

The Cisco IOS software checks the system condition once every 30 seconds. If a condition still exists, the error message is displayed again; if the error condition has cleared, a recovery message is displayed.

Table 8-2describes some of the most common system error and recovery messages.

Table 8-2

System Messages

 

 

 

 

Error Message

 

Explanantion

 

 

%ENVMON-3-FAN_OK: Fan <fan-number>

The cooling fan within the chassis is working.

functional now

 

 

 

 

%ENVMON-3-FAN_FAIL: Fan <fan-number> is

The cooling fan within the chassis is not working.

malfunctioning

 

 

 

 

%CFG-3-CARD_NOT_SUPPORTED: Slot <n>.

The card found is not recognized or is not

<Card identification from cookie, including at

supported in the specified slot.

least card type, version, revision, and serial

 

number>

 

 

 

 

%CFG-6-UNKNOWN_AIM: AIM module in

This Cisco IOS image does not have the driver

AIM slot <n> is not supported by this IOS image.

code for the AIM discovered in AIM slot.

Card info: <all TLV PEP data from cookie>

 

 

 

 

Recovering a Lost Password

You can recover a lost enable password, but an enable secret password is encrypted and is not recoverable. If you lose an enable secret password that is configured on your router, you can replace it with a new enable secret password.

For password recovery and replacement procedures, see the Password Recovery Procedures.

More Troubleshooting Help

For online troubleshooting help, go to the TAC Case Collection Tool and Troubleshooting Assistant.

You must have an account on Cisco.com. If you do not have an account or have forgotten your username or password, click Cancel at the login dialog box and follow the instructions that appear.

Cisco 1800 Series Routers (Modular) Hardware Installation Guide

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Cisco Systems CISCO1841-HSEC/K9-RF manual Recovering a Lost Password, More Troubleshooting Help, Explanantion

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.