This document describes steps to resolve an issue in which an Aggregation Services Router (ASR) 5x00 Series cannot be accessed via the remote login or by console login.
Cisco requires that you have:
- A serial cable provided by Cisco in order to connect to the ASR 5x00 Console port
- A workstation with the HyperTerminal application installed
- The latest configuration file of the ASR 5x00, saved on the router's flash card
The information in this document is based on the Aggregation Services Router (ASR) 5x00 Series.
The information in this document was created from the devices in a specific lab environment. All of the devices used in this document started with a cleared (default) configuration. If your network is live, make sure that you understand the potential impact of any command.
The ASR 5x00 chassis is not accessible via SSH/Telnet and the console login does not work.
In order to reproduce the problem, complete these steps:
- Connect the RJ-45 end of the cable to the port labeled Console on the router.
- Connect the DB-9 end of the cable to the serial port on the workstation or laptop.
- Click the Windows Start button.
- In the search box, enter computer management.
- Click Computer Management in the Programs area of the search results. The Computer Management window appears.
- In the left pane of the Computer Management window, expand System Tools and click Device Manager. A list of devices is displayed in the main area of the window.
- In the list of devices, expand Ports and locate the COM port that corresponds to the port you connected the cable to in Step 2. Make a note of the COM port number.
- Open the HyperTerminal application.
- On the File menu, select New Connection. The Connection Description window appears.
- Enter a name for the connection and click OK. The Connect To window appears.
- In the Connect using drop-down list, choose the COM port you located in Step 7.
- Click OK. The <COM#> Properties window appears.
- Enter these settings:
Click OK. A console login prompt appears.
Enter the username and password and press Enter. The message "Login incorrect" appears.
- Bits per second: 115200
- Data bits: 8
- Parity: None
- Stop bits: 1
- Flow control: None
- In order to power cycle the router chassis, turn the circuit breakers on the power filter units (PFUs) to the Off (0) position and then to the On (I) position.
- Watch the messages displayed in the HyperTerminal window as the router goes through its boot sequence.
- Press Ctrl-C in order to interrupt the boot sequence when you see "Booting priority".
- At the command prompt, enter cli and press Enter. The prompt changes from boot to cli in order to indicate that you are in CLI mode.
- Enter the command to boot the configuration image you saved. The boot command syntax is:
8/0:cli>boot -noconfig /flash/production.50091.asr5000.bin
- Wait until you see the message "No configuration found, press enter to continue." Press Enter.
- When you are asked if you want to continue with the Quick Setup Wizard, enter no and press Enter.
- Load the router chassis with the desired configuration. Use EXEC mode in order to run this command:
#configure /flash/<file name>.cfg
- Attempt to log in with the existing account credentials. If the login fails, enter these commands in order to create new credentials:
[local]ASR5K_LAB(config)# context local
[local]ASR5K_LAB(config-ctx)# administrator <username> password <password>
- Attempt to log in via SSH or Telnet with the new credentials in order to verify the solution.