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[ScreenOS] How to set up a serial console connection to NetScreen's communications port using HyperTerminal



Article ID: KB6011 KB Last Updated: 17 Mar 2020Version: 6.0

This article explains how to set up a serial Console connection to NetScreen's communications port by using HyperTerminal.




  • An RS232 or RJ45 straight cable is used to connect from the PC to the NetScreen device.

  • Hyperterminal settings have been configured.

  • The IP address needed to manage the NetScreen is lost. I need to connect to NetScreen using the console.

Symptoms & Errors:

  • Cannot log in to the WebUI or SSH to manage the device and need console access



To determine the IP address of the NetScreen device, a direct serial console connection is required. 

  1. Physically hook up the console to the NetScreen device on one end, and hook up the other end to the PC's serial connection. 

  2. Launch HyperTerminal (located in Start > Programs > Accessories > Communications > HyperTerminal.

  3. Create a connection name.

  4. On the Connect To screen, from the Connect Using pull down menu, select the appropriate COM port for your PC.

  5. Configure the serial settings to:

    • Bits per second: 9600

    • Data Bits: 8

    • Parity: None

    • Stop Bits: 1

    • Flow Control: None

After HyperTerminal is set up, hit [Enter] a few times until you get to the login prompt, and log in to the box. To determine the IP address, apply the following command:

get system [Enter]

The get system will tell you what IP address you need to connect to. If accessing the NetScreen device from the untrust side, you will need the manage-ip on the untrust side. If accessing the NetScreen device from the trust side, you will need the manage-ip on the trust side. If the NetScreen device is running in transparent mode, you will need the system-ip of the device.

If the device is running 3.1 or later, the IP address you need is the vlan1 interface IP address.

Additional Information:

Any other serial console program can be used, for example, TeraTerm, Putty, SecureCRT and so on.


Modification History:

2020-03-17: Article edited to make symptom section clear; rest of the article is up to date and relevant.

2017-12-07: Article reviewed for accuracy. Minor changes made. Article is correct and complete.


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