Cisco CISCO3925-V/K9 Integrated Services Router User Manual

1. Introduction

The Cisco 3925 Integrated Services Router (ISR) is designed to deliver highly secure data, voice, video, and application services, primarily for small branch offices. This manual provides essential information for the proper setup, operation, maintenance, and troubleshooting of your CISCO3925-V/K9 router.

Key features include a Modular Services Performance Engine (SPE) 100, three integrated 10/100/1000 Ethernet ports (two capable of RJ-45 or SFP connectivity), four Enhanced High-Speed WAN Interface Card (EHWIC) slots, and integrated power distribution for modules supporting 802.3af Power over Ethernet. It also incorporates integrated threat control using Cisco IOS Firewall, Cisco IOS Zone-Based Firewall, Cisco IOS IPS, and Cisco IOS Content Filtering.

2. Safety Information

• Electrical Safety: Always connect the router to a grounded power outlet. Do not operate the device with damaged power cords or plugs.
• Ventilation: Ensure adequate airflow around the router to prevent overheating. Do not block ventilation openings.
• Placement: Place the router on a stable, flat surface. Avoid locations with excessive dust, moisture, or extreme temperatures.
• Servicing: Refer all servicing to qualified service personnel. Do not attempt to open or repair the router yourself.
• Cabling: Use appropriate cabling for network connections. Ensure cables are securely connected and not damaged.

3. Package Contents

Verify that your package contains the following items:

• Cisco CISCO3925-V/K9 Integrated Services Router
• Power Cord
• Rack-mount kit (if applicable)
• Documentation (Quick Start Guide, Safety Information)

If any items are missing or damaged, contact your vendor or Cisco support immediately.

4. Setup

4.1 Physical Installation

1. Placement: Position the router in a well-ventilated area, away from direct sunlight and heat sources. Ensure sufficient space for cable routing and air circulation.
2. Mounting: The router can be placed on a desktop or mounted in a standard 19-inch equipment rack using the provided rack-mount kit. Follow the instructions included with the rack-mount kit for secure installation.
3. Power Connection: Connect the power cord to the router's power input and then to a grounded electrical outlet. Do not power on the device yet.
4. Network Connections:
   • Connect your WAN (Internet) cable to one of the appropriate Ethernet ports (e.g., Gigabit Ethernet ports).
   • Connect your local network devices (computers, switches) to the remaining Ethernet ports.
   • If using voice/fax modules, install them into the EHWIC slots as per their specific instructions and connect telephony lines.

Figure 1: Front view of the Cisco CISCO3925-V/K9 Integrated Services Router, showing various ports and status indicators. This image illustrates the physical layout for connecting network cables and power.

4.2 Initial Power On and Configuration

1. Power On: After all physical connections are made, press the power button on the router. Observe the LED indicators for power and system status.
2. Console Access: For initial configuration, connect a console cable from your computer to the router's console port. Use a terminal emulation program (e.g., PuTTY, Tera Term) with settings: 9600 baud, 8 data bits, no parity, 1 stop bit, no flow control.
3. Cisco IOS Configuration: The router runs Cisco IOS. Follow the on-screen prompts or consult the Cisco IOS Configuration Guides for detailed setup procedures, including IP addressing, routing protocols, security settings, and voice/fax module configuration.
4. Management Interface: Once basic network connectivity is established, the router can be managed via Telnet, SSH, or a web-based interface (if configured).

5. Operating the Router

The Cisco 3925 ISR is designed for continuous operation. Once configured, it will provide network services automatically. Monitoring and management are typically performed via the Cisco IOS command-line interface (CLI) or network management systems.

• Data Services: The router facilitates secure data routing between your local network and the internet, supporting various WAN technologies.
• Voice and Fax Services: With the integrated voice/fax module, the router supports IP telephony and traditional fax services, enabling communication within your branch office and with external networks.
• Video and Application Services: The router's performance engine and modular design support the delivery of video and various application services, ensuring quality of service (QoS) for critical traffic.
• Security Features: Integrated threat control mechanisms, including Cisco IOS Firewall, IPS, and Content Filtering, protect your network from unauthorized access and malicious activities.

6. Maintenance

6.1 Routine Checks

• LED Indicators: Periodically check the status LEDs on the front panel to ensure normal operation. Refer to the router's hardware installation guide for LED descriptions.
• Physical Inspection: Inspect cables and connections for any signs of wear or damage. Ensure all modules are securely seated.
• Environmental Conditions: Verify that the operating environment remains within specified temperature and humidity ranges. Ensure ventilation openings are clear.

6.2 Firmware Updates

Regularly check the Cisco support website for the latest Cisco IOS software updates. Applying updates can provide new features, performance enhancements, and security patches. Always follow Cisco's recommended procedures for software upgrades to avoid service interruptions.

6.3 Cleaning

To clean the exterior of the router, use a soft, dry, lint-free cloth. Do not use liquid or aerosol cleaners, as they may damage the device. Ensure the router is powered off before cleaning.

7. Troubleshooting

This section provides solutions to common issues you might encounter.

• No Power:
  • Check if the power cord is securely connected to both the router and the electrical outlet.
  • Verify that the power outlet is functional by plugging in another device.
  • Ensure the power switch on the router is in the 'ON' position.
• No Network Connectivity:
  • Check the Ethernet cable connections to ensure they are secure and not damaged.
  • Verify the status of the link/activity LEDs on the connected ports.
  • Confirm that the router's network interfaces are correctly configured in Cisco IOS.
  • Check for IP address conflicts or incorrect subnet mask settings.
• Slow Performance:
  • Monitor CPU and memory utilization using Cisco IOS commands.
  • Check for high network traffic or potential denial-of-service attacks.
  • Ensure QoS policies are correctly applied to prioritize critical traffic.
• Voice/Fax Issues:
  • Verify that voice/fax modules are correctly installed and recognized by the router.
  • Check voice port configurations and dial-peer settings in Cisco IOS.
  • Ensure proper connectivity to the telephony network.
• Router Not Responding:
  • Attempt to access the router via the console port.
  • If unresponsive, perform a power cycle (power off, wait 10 seconds, then power on).
  • As a last resort, consider a factory reset (consult Cisco documentation for the specific procedure, as this will erase all configurations).

For more advanced troubleshooting, refer to the comprehensive Cisco documentation available on the Cisco support website or contact Cisco Technical Assistance Center (TAC).

8. Specifications

9. Warranty and Support

9.1 Product Warranty

Cisco products typically come with a limited hardware warranty. The exact terms and duration of the warranty may vary depending on your region and the specific purchase agreement. Please refer to the warranty documentation included with your product or visit the official Cisco website for detailed warranty information.

9.2 Technical Support

For technical assistance, troubleshooting, or further information regarding your Cisco CISCO3925-V/K9 router, please utilize the following resources:

• Cisco Support Website: Access comprehensive documentation, software downloads, and knowledge base articles at www.cisco.com/support.
• Cisco Technical Assistance Center (TAC): For direct support, contact Cisco TAC. Contact information can be found on the Cisco support website.
• Cisco Community: Engage with other Cisco users and experts for peer-to-peer support and discussions.

When contacting support, please have your product model number (CISCO3925-V/K9) and serial number readily available.