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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 by 46809. In a newer trunk build, only ssh is available.

Command-line Interface(CLI)

  • using Telnet (only if you are using Chaos Calmer 15.05 (or earlier) and you haven't already set up a password)
  • via SSH (employ PuTTY , WinSCP or HotSSH)

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 telnet

  • login to your router via telnet
    BusyBox v1.17.3 (2011-02-22 23:42:42 CET) built-in shell (ash)
    Enter 'help' for a list of built-in commands.
      _______                     ________        __
     |       |.-----.-----.-----.|  |  |  |.----.|  |_
     |   -   ||  _  |  -__|     ||  |  |  ||   _||   _|
     |_______||   __|_____|__|__||________||__|  |____|
              |__| W I R E L E S S   F R E E D O M
     ATTITUDE ADJUSTMENT (bleeding edge, r26290) ----------
      * 1/4 oz Vodka      Pour all ingredents into mixing
      * 1/4 oz Gin        tin with ice, strain into glass.
      * 1/4 oz Amaretto
      * 1/4 oz Triple sec
      * 1/4 oz Peach schnapps
      * 1/4 oz Sour mix
      * 1 splash Cranberry juice
  • 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)
  • 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


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.

Your password is set now.


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: 2016/02/02 18:08 by binarydog