Cisco Systems CISCO1750 manual Resetting the Router

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Recovering a Lost Password

Resetting the Router

Follow these steps to reset the router:

Step 1 Do one of the following:

•If break is enabled, go to Step 2.

•If break is disabled, turn the router off, wait 5 seconds, and turn it on again. Within 60 seconds, press the Break key. The terminal displays the

ROM monitor prompt. Go to Step 3.

Note Some terminal keyboards have a key labeled Break. If your keyboard does not have a Break key, refer to the documentation that came with the terminal for instructions on how to send a break. To send a break in Windows HyperTerminal, enter Ctrl-Break.

Step 2 Send a break. The terminal displays the following prompt: rommon 2>

Step 3 Enter confreg 0x142 to reset the configuration register: rommon 2> confreg 0x142

Step 4 Initialize the router by entering the reset command: rommon 2> reset

The router resets, and the configuration register is set to 0x142. The router boots the system image in Flash memory and displays the following:

--- System Configuration Dialog ---

Step 5 Enter no in response to the prompts until the following message is displayed: Press RETURN to get started!

Step 6 Press Return. The following prompt appears:

Router>

Cisco 1750 Router Hardware Installation Guide

iv

78-6169-02

 

 

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Contents Cisco 1750 Router Hardware Installation Guide Page Cisco 1750 Router Hardware Installation Guide Page Commands Router MemoryCabling Specifications Problem SolvingTechnical Specifications Ethernet CablesLocating Modules C-v Viii About This Guide Organization Audience and ScopeRelated Publications Conventions Xii Xiii Commands DescriptionCisco 1750 Router Overview Key Features Feature DescriptionIii Ethernet Connector/Slot Label/Color DescriptionRear-Panel Ports and LEDs AUXConnector/Slot LED Label Color DescriptionCards Front-Panel LEDsColor Supported LED Meaning Slotø Portø ACTCOL IsdnVIC-2E&M SLOT1 PortøVIC-2E&M VIC-2FXO VIC-2FXS SLOT2 Portø VIC-2FXO VIC-2FXS PORT1Router Memory Types of MemoryAmounts of Memory 1750# show versionUnpacking the Router Equipment When You Use ItAdditional Required Equipment Types, refer to the Cisco WAN Interface Cards Hardware NT1Installation Before Installing the RouterConnecting the Router to Your Local Network Iii Connecting the Router to the Local Network Installing WICs and VICs Safety InformationInstalling WICs and VICs Removing a WIC or VIC Slot Cover Connecting Power to the Router Connecting Power to the RouterConnecting the Power Supply Verifying Your Installation Optional Installation StepsConnecting a PC Connecting the Console Cable to the Router Connecting a Modem 1750Wall-Mounting Wall-Mount Brackets-Bottom of Router78-6169-02 Xvi Troubleshooting Contacting Cisco or Your ResellerRecovering a Lost Password Changing the Configuration RegisterConfiguration register is Resetting the Router Resetting the Password Problem Solving Resetting the Configuration Register ValueOK LED Diagnostics Number of Blinks MeaningTroubleshooting WICs and VICs Router#show diag SlotSymptom Possible Solutions Cisco WAN Interface Cards Hardware Installation GuideTroubleshooting the Power System Compliance and Safety Information for the Cisco 1600Troubleshooting Isdn Isdn S/T Symptom Check the Following Possible SolutionsIsdn U Use show isdn status Xiv Technical Specifications Description SpecificationCisco 1750 Router Hardware Installation Guide 78-6169-02 Cabling Specifications Ethernet CablesEthernet Network Cabling Guidelines RJ-45 Pin Signal DirectionSpecification 10BaseT 100BaseTX TX+ RX+UTP Signal RJ-45 Pin DB-9 Pin DB-25 PinConsole Cable and Adapters Console TerminalTXD RXD GND DSR DTR CTS RTS Identifying a Rollover CableShows how to connect the VICs to the network VIC Cables and PinoutsPin Signal Pin Signal DescriptionLead Signaling output Signaling ground Return Viii Installing and Upgrading Memory and Data Modules Safety InformationPage Opening the Chassis Removing the Chassis Screws Locating Modules Cisco 1750 Motherboard-Module LocationsInstalling a Mini-Flash Module Removing a Mini-Flash ModuleRemoving a Mini-Flash Module Installing a Mini-Flash Module Installing a Dual In-Line Memory Module Installing a DimmInstalling a Packet Voice Data Module Installing a PvdmClosing the Chassis Closing the Chassis D E Enable Enable secret Isdn switch-type IOS OK LED Index Index

CISCO1750 specifications

The Cisco Systems CISCO1750 is a versatile, high-performance router designed to meet the needs of medium-sized businesses and enterprise environments. Known for its reliability and scalability, the CISCO1750 serves as a gateway to advanced networking solutions, offering a range of features and technologies that enhance functionality and connectivity.

One of the main characteristics of the CISCO1750 is its modular design, allowing users to customize the router according to their specific requirements. With various interface cards and network modules available, users can expand the router's capabilities to accommodate additional connections and services. This modularity makes the CISCO1750 a cost-effective solution, as organizations can invest in the hardware they need without overspending on unnecessary features.

The CISCO1750 supports multiple WAN interfaces, including T1/E1 and DSL connections, making it suitable for diverse network environments. It also includes integrated Ethernet switching, supporting both Fast Ethernet and Gigabit Ethernet interfaces. This allows the router to handle high-speed data transfers efficiently while ensuring reliable connectivity between various local devices.

In terms of software capabilities, the CISCO1750 runs on the Cisco IOS (Internetwork Operating System), providing advanced routing protocols like OSPF, EIGRP, and BGP. This enables the router to efficiently manage network traffic, optimize performance, and ensure high availability. The inclusion of advanced security features, such as IPsec VPN support and access control lists, helps safeguard sensitive data while maintaining robust network integrity.

Scalability is another key feature of the CISCO1750. As organizations grow and their networking needs evolve, the router can adapt by supporting additional users and devices. The device can also be integrated with other Cisco products for a unified networking infrastructure, ensuring seamless operations across the entire organization.

The CISCO1750 is designed with a focus on ease of management. Users can configure and monitor the device through a user-friendly command-line interface or GUI-based management tools. Additionally, the router supports SNMP (Simple Network Management Protocol), enabling administrators to monitor network performance and troubleshoot issues effectively.

In summary, the Cisco Systems CISCO1750 is a powerful and flexible router that meets the demands of modern enterprise networking. With its modular design, support for various interfaces, advanced routing capabilities, robust security features, and ease of management, it stands out as a reliable choice for organizations looking to enhance their network infrastructure.
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