> For the complete documentation index, see [llms.txt](https://help.boomerang3.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://help.boomerang3.com/bbo-buffer-installation-manual/advanced_use/connect_using_web_interface.md).
# Connect using web interface
1. Enter the BBOB WAN IP as a URL in any web browser.
{% hint style="warning" %}
Do not use any old, not supported web browsers like e.g. Internet Explorer as the web page may not open correctly - see [BBOB web interface does not work with Internet Explorer](/bbo-buffer-installation-manual/troubleshooting/bbob-web-interface-does-not-work-with-internet-explorer.md).
{% endhint %}
2. Enter user name and password. The defaults are:\
user: root\
password: rasp4icu
3. The BBOB web interface will open.
## Create access to BBO GUI
To be able to access the BBOs connected to BBOB create port forwarding rules.
1. Check the IP addresses assigned to BBO units on “Status – Overview” page.
2. Go to “Network – Firewall” and select “Port Forwards”.
3. Click “Add” and define port forward for the first BBO (IP 192.168.1 223 in the example).
4. Click “Save”.
5. Define the port forwards for the rest of the BBOs using external ports 54002, 54003 and so forth. The complete settings in the example are shown below.
6. Click “Save & Apply” to store the settings.
7. To access BBO GUI, enter BBOB IP followed by colon and its external port number. The example for port 54001 is shown below.
Please note that the access will not work if the internal BBO IP addresses will change. In such a case port forwards must be updated accordingly.
## Set WAN static IP
The WAN interface is set as DHCP client by default and it assumes it will receive the WAN port IP from a DHCP server. If you need to use a static IP for BBOB WAN, then you have to set it using the web interface.
1. Enter the BBOB IP into the address field of a web browser to open the BBOB web interface.
2. Go to Network – Interfaces.
3. Click ‘Edit’ in WAN row.
4. Click ‘Switch protocol’ to open the next form.
5. Enter the parameters and click ‘Save’.
6. To check the configuration, connect again to the new IP and check if the web interface opens.
7. It is also possible to connect to the web interface from LAN where the BBOB IP address is 192.168.11.1 for unit set up as BBO Buffer or 192.168.1.1 for unit reset to factory defaults.\
\
This may be useful if you made incorrect WAN changes and you cannot access the web interface from there.
## Change address of internal area network
If WAN interface has the same net as LAN (default 192.168.11.1) the settings of LAN has to be adjusted.
To change net address of LAN:
1. Login to the web interface **from WAN side** and select Network -> Interfaces:
2. Click Edit button.
3. Change IPv4 address. Please remember to keep “1” in the last group. This address will be a valid address for communication between BBO and BBOB. Therefore, all BBOs will have to be updated (see 2.2.2 BBO POST Client Configuration).
4. Click Save button.
---
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