By default, DHCP sets the IP address, subnet mask, and default gateway.
For future reference, write down the IP address.
For DHCP to work, your network environment must have a DHCP server. If DHCP is not available, the host assigns the link local IP address, which is in the subnet 169.254.x.x/16. The assigned IP address appears on the direct console. If you do not have physical monitor access to the host, you can access the direct console using a remote management application. See Using Remote Management Applications
When you have access to the direct console, you can optionally configure a static network address. The default subnet mask is 255.255.0.0.