# Wind Park Networks

### Ardexa machine has two LAN ports

Generally speaking there are two ways the Ardexa Machine operates

* Use 1 LAN: A single access point (DHCP or static IP) where we can BOTH access the data server(OPC/ODBC) and the internet
* Use 2 LAN: One LAN connection (DHCP or static IP) to access the data server and the other LAN connection to subnet with internet access (DHCP or static IP)

When using 2 LANs, there are many different scenarios that will work when trying to access the data server:

* Direct connection to the OPC/ODBC server. Some data servers have a spare ethernet port with a static IP address.  We can directly connect to this port.
* Access a subnet with the data server directly attached
* Access a subnet that does not have internet access, but allows us to route to the data server in another subnet.
* Access to a subnet that has a Proxy Server that we can use to access the data server (usually OPC XML)

Instructions on changing network settings on ArdexaLinux can be found [here](https://docs.ardexa.com/knowledge/configure/ardexalinux/networking/netconfig).