Since version 3.3 of the 2N Access Commander, it is possible to configure the detection of an address change  on connected 2N IP device which are ouside of the same network segment as Access Commander is. 

This function is helpful when 2N IP devices do not have a static IP address configured, and there is a possibility that the IP device's IP address changes, or with large installations where the devices are not on the same subnet. 

This function can be configured in the "Settings -> Configuration -> Network -> Detect device IP address change" section of the 2N Access Commander's web interface. 

Then select one or both of the options, and save the settings.  

• Detection via network scanner - Recommended if all devices are in the same network segment. It works within the same segment using a discovery protocol. 
• Detection via device callback - Suitable for large networks (with many segments). The device informs Access Commander via HTTP if it knows its address (domain name or static IP). Enter the domain name or static IP address in the field below. 

You need to fill in 2N Access Commander's own IP address or domain name and 2N Access Commander will configure connected 2N IP devices, so the 2N IP devices outside of the 2N Access Commander's network or subnet would stay connected to the 2N Access Commander in case of a 2N IP device's IP address changes. 

For this to happen, 2N IP devices needs to be already added in 2N Access Commander (from 2N Access Commander itself) and be in online state with 2N Access Commander. 

It cannot be used for devices not yet added in to 2N Access Commander.