> For the complete documentation index, see [llms.txt](https://cookbook.denovolab.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://cookbook.denovolab.com/installation/change-ip-mac-address.md).

# Change IP/MAC Address

In this section, we will discuss what you should do if you change IP address in your switch installation.  

if ip is changed for whatever reason, you must do the following:

1 - Modify dnl\_softswitch.conf file to update license ip and lrn local ip.  The following 2 parameters need to be adjusted to current ip address:

![](/files/76sezvd61R4fLSDREhCS)

2 - Delete these 2 files: dnl\_softswitch.key2 and dnl\_softswitch.lic  

3 - Restart dnl\_softswitch

{% hint style="info" %}
The default location for dnl*softswitch.conf is /opt/denovo/dnl*\_softswitch/conf
{% endhint %}

{% hint style="info" %}
You can restart Class 4 switch with the command : systemctl restart dnl\_softswitch
{% endhint %}