Internet Connections

There is no charge for this service.

Information Services is responsible for providing Internet connectivity to the OSU community.




Quick Information
Authoritative Name Servers,
Caching Name Servers for OSU,
Policies Domain Name Policy
DNS/DHCP Registration System Cyder

What is DNS?

DNS stands for "Domain Name System". In essence, it is a directory of names that point to services on the local network or the Internet. Computers communicate with each other over the Internet via IP addresses (e.g. DNS provides human-friendly names for these IP addresses. For example: the DNS name points to the IP address

What is DHCP?

The Dynamic Host Configuration Protocol (DHCP) is an Internet protocol for automating the configuration of computers on a network. DHCP can be used to automatically assign IP addresses, to deliver TCP/IP stack configuration parameters such as the subnet mask and default router, and to provide other configuration information such as the addresses for DNS servers.

Registering Your Computer on the OSU Network

Most OSU network registration is done via Cyder, an open source application developed at OSU. For general help with Maintain, network registration, or activating your ONID account, please contact the OSU Computer Helpdesk.

  • Departmental Computer Administrators (DCAs)
    DCAs have access to Cyder to register network devices for use on departmental networks. If you are a DCA and need access to Cyder, please contact Network Operations.
  • Employees
    Employees needing a device registered should contact their DCA. Employees may also register their own wireless devices by logging into Self Registration with their ONID account.
  • Students Using Wireless
    You may register your own wireless devices by logging into Self Registration with your ONID account. For help, see Helpdocs: Wireless Registration.
  • Students in the Residence Halls
    Directions for registering your computer on the Residence Hall Network (ResNet) are here: Helpdocs:ResNet.

Recursive Requests

As of August 3rd, 2013 Oregon State University's authoritative name servers ns1 and ns2 no longer answer recursive requests from outside of our network. This change was made to prevent our name servers from being used in DDoS attacks against other Internet hosts.


What is Internet2?

Internet2 is a consortium of universities working in partnership with industry and government to develop and deploy advanced network applications and technologies. OSU has been an Internet2 partner since 1999.

What does Internet2 do for me?

Internet2 members enjoy high speed connections to each other, enabling improved performance for bandwidth-intensive applications such as digital video, distributed learning, remote instrumentation and tele-immersion (virtual reality).

How do I use Internet2?

When you communicate with another institution that is an Internet2 member, your network traffic will flow over the faster Internet2 connection. Much of OSU's commodity traffic (i.e. traffic to large commercial sites such as Google, Amazon, etc.) is now also over I2 through the Commercial Peering Service.

Who are the members of Internet2?

There are many higher education members of Internet2, as well as corporate, governmental and international members. See the following for more information about the I2 community:

Where can I learn more about Internet2?

Learn more at

I have an application that could make use of Internet2. Who should I talk to?

Talk to your Department Computing Administrator (DCA), or contact Network Engineering for more information.

OSU IP Ranges

Range CIDR Group - /16 OSU public netblock - /8 OSU private netblock - /24 Oregon University System - /24 OSU - /23 OSL - /20 County Extension, Ag Experiment Stations