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OpenWrt – First Login

There is no preset password in OpenWrt! You need to set one at your first login per ssh, telnet or the WebUI.
Pre-built trunk images do not come with any web interface or GUI. You will only be able to login using the CLI, unless you install one yourself: LuCI Essentials
Telnet was removed from trunk as of build 46809. In a newer trunk build, only ssh is available. Note : As of 30/04/2016, Telnet is still available in OpenWrt 15.05.1

Command-line Interface(CLI)

  • Via Telnet: Only if you are using Chaos Calmer 15.05.1 (or earlier) and you have NOT already SET UP a password. After setting a password for the root account, telnet connection is disabled and you must use a ssh connection for CLI.
  • Via SSH: Use PuTTY , WinSCP or HotSSH. For OpenWrt builds prior to 15.05.1, SSH connection is only available after setting a password for the root account.

HTTP (using your web browser)

  • If there is no WebUI (Web user interface) in the image, you can swiftly install one following this HowTo: LuCI
  • For other WebUIs have a look at the webinterface.overview

Please note: (HTTPS access is only available after First Login)

OpenWrt System Default

Any freshly installed "vanilla" OpenWrt Image, will start with these defaults:

  • The internal interface lan and the wireless interface/interfaces wlan0 / wlan1 are bridged together to br-lan
  • wifi is disabled
  • the IP address of the internal interface/bridge of the OpenWrt-device is
  • dnsmasq is running; it allocates IP addresses in the range of to .250 on the internal interface to connected hosts
  • dropbear does not accept connections (releases up to Chaos Calmer 15.05 and trunk builds before r46809)
  • telnet daemon is running on standard port 23 (releases up to Chaos Calmer 15.05 and trunk builds before r46809)
  • ssh daemon is running on standard port 22 (trunk builds after r46809)
OpenWrt will keep booting into this state until you set a password:

Login with ssh

  • login to your router via ssh: (The following example was done with PuTTY).
    login as: root
    BusyBox v1.24.2 () built-in shell (ash)
      _______                     ________        __
     |       |.-----.-----.-----.|  |  |  |.----.|  |_
     |   -   ||  _  |  -__|     ||  |  |  ||   _||   _|
     |_______||   __|_____|__|__||________||__|  |____|
              |__| W I R E L E S S   F R E E D O M
     DESIGNATED DRIVER (Bleeding Edge, 50140)
      * 2 oz. Orange Juice         Combine all juices in a
      * 2 oz. Pineapple Juice      tall glass filled with
      * 2 oz. Grapefruit Juice     ice, stir well.
      * 2 oz. Cranberry Juice

Login with telnet

  • login to your router via telnet:
    telnet> open 23
    Connected to
    Escape character is '^]'.
     === IMPORTANT ============================
      Use 'passwd' to set your login password
      this will disable telnet and enable SSH
    BusyBox v1.23.2 (2016-01-02 10:46:55 CET) built-in shell (ash)
      _______                     ________        __
     |       |.-----.-----.-----.|  |  |  |.----.|  |_
     |   -   ||  _  |  -__|     ||  |  |  ||   _||   _|
     |_______||   __|_____|__|__||________||__|  |____|
              |__| W I R E L E S S   F R E E D O M
     CHAOS CALMER (15.05.1, r48532)
      * 1 1/2 oz Gin            Shake with a glassful
      * 1/4 oz Triple Sec       of broken ice and pour
      * 3/4 oz Lime Juice       unstrained into a goblet.
      * 1 1/2 oz Orange Juice
      * 1 tsp. Grenadine Syrup

Note : DO NOT USE the command line "telnet" because this connection does not work, you will have this message "Encryption could not be enabled." and next telnet connection is closed by OpenWrt device.

Setting a password

  • type passwd into the prompt. You will be prompted to set a new password for the user root:
    root@OpenWrt:/# passwd
    Changing password for root
    New password:
    Retype password:
    Password for root changed by root
  • please choose a secure password, (consult e.g password strength) else the passwd tool will say to you "Bad password: too weak" after the line "New password: "
  • after you set a password the telnet daemon will be disabled, type exit into the prompt
  • without reboot, SSH is now available; so is HTTPS if the WebUI (LuCI) is installed with it's TLS-modules
  • login again with ssh root@ or use signature.authentication
  • proceed with basic.config

Login to WebUI


First connection to Luci to set up password for root account by GUI

Open your browser and connect to the router at its default address (usually Login using username root with an empty password.

Make sure your browser accepts (session) cookies. LuCI login fails if password is set and session cookies cannot be accessed.

Then click on the left in the top bar on Administration, then go to System in the bar underneath. A page to change the password is displayed.

Write your desired password into the field Password and repeat it in the field Confirmation. Finally click on Save & Apply.

  • This is the ADMIN password for the router, NOT your WiFi password to connect devices.
    • This password should be a minimum 15 characters & contain at least:
      • two uppercase letters
      • two lowercase letters
      • two numbers
      • two symbols

Your password is now set.

First connection to Luci after set up password for root account by CLI

Open your browser and connect to the router at its default address (usually or Login using username root and with the password that you have previously set up by CLI (follow the steps in "Login with telnet" part in this web page).


Open your browser and connect to the Web Interface at its default address ( the username is admin OR root and the password is password. You can ssh to the router at the default address ( the username is root the password is password. Unlike OpenWrt the telnet port is not open.

Login Problems

If you encounter problems with login, i.d. you can't login, this may very well be a problem with your firewall settings in Linux or Windows. If you have any firewalls, you may disable them. Also, once you set a password in OpenWrt, telnet will no longer functions (see above).

No SSH access after Setting Password

Try again after a minute or two. On the first bootup OpenWrt will be busy setting up the filesystem and generating SSH keys; the SSH server won't start until after the keys have been generated.

Telnet connection immediately closes

Once you've set a password new telnet connections are immediately terminated. You must SSH at that point.

doc/howto/firstlogin.txt · Last modified: 2018/02/01 07:35 by louie