Depending on how you configure your system it possible you may have to set up your network manually. The information will depend on what network you have been assigned.
IPv4
38.45.64.x
Default gateway: 38.45.64.1
Netmask is /22 or 255.255.252.0
38.45.71.x
Default gateway: 38.45.71.1
Netmask is /24 or 255.255.255.0
38.45.72.x
Default gateway: 38.45.72.1
Netmask is /24 or 255.255.255.0
IPv6
Default gateway: 2001:550:5a00::1