You can set a static IP address to the shield as follows:
Connect to the web setup page of shield
Move to the SETUP page.
Click the [NETWORK] > [IPv4] menu.
Select the [IP Address Type] to [Static IP Address].
Input an IP address, a Subnet mask, a Gateway IP address and a DNS IP address and click the [SAVE].
The IP address must be unique within the network. If you connect the shield to a public network, please make sure whether IP address is already in use or not. If there is a manager in charge of IP address assignment on your network, we recommend to get assistance from the manager.
Once the setup is completed, the web browser will be reconnected to its IP address.