OIT Network Systems: Miscellaneous Topics

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Miscellaneous Topics

OIT Ethernet Service: OIT Ethernet Service allows University faculty, staff, and students to connect devices to the campus data network via an Ethernet interface. The service is available in practically every building on campus.
Global Internet Service: An overview of the campus network's connections to the global Internet.
The TigerNet Host Charge: Most devices attached to the campus data network are subject to the TigerNet Host Charge; the charge is based upon Host Database records. Dormnet subscriptions are not subject to the TigerNet Host Charge (Dormnet uses a separate subscription fee). The TigerNet Host Charge is waived for network infrastructure, printers, and some other special kinds of devices.
Networking Charges: A summary of monthly network connection charges for office and classrooms connections; this document is published by OIT Administrative Services.
Princeton Network ("subnet") List: How to determine what campus subnet a device is attached to, based on the geographic location. (You may also use this document to determine the subnet's IP network number, IP subnet mask, and IP default router; most people won't need that level of detailed information.)
Default IP Routers, Network Masks, and Broadcast Addresses: How to determine a computer's default IP router (a.k.a "gateway"), network mask (a.k.a. "netmask"), and broadcast address, based on the computer's assigned IP address.
OIT Network Systems: Device Blocking Policies: An overview of the most common reasons OIT Network Systems block devices from the network, how customers are notified of these blocks, and the timeframe for removing such blocks once the customer has resolved the issue.
Three Strikes Policy for Network Disruptions: OIT's policy for handling customers who inadvertently disrupt or degrade network service repeatedly.
OIT DHCP and BootP Services: DHCP (the Dynamic Host Configuration Protocol) and BootP (Boot Protocol) allow a network-attached device to learn some of its network configuration information (including its IP address) automatically. DHCP is also used to provide OIT Mobile IP Service, Temporary Unregistered Dormnet (TUD) IP Address Service, Visitor IP (VIP) Service, and Temporary Visitor Wireless Network Access (TVWNA).
OIT Static IP Service: OIT Static IP Service provides a static (unchanging) IP address and DNS hostname to your computer when it is attached to OIT Ethernet wiring on its "home network."
OIT Static IP Recycling Facility (SIRF): The OIT Static IP Recycling Facility (SIRF) locates OIT Static IP Addresses that have been unused for a long time; it recycles these addreses to help conserve them.
OIT Mobile IP Service: OIT Mobile IP Services let you temporarily attach your computer to the campus network in locations other than your "home" location and still receive IP service without reconfiguring your computer or updating its Host Database entry.
OIT Domain Name Service: A description of the Domain Name Service we provide. Domain Name Service (DNS) provides access to the Internet's distributed database, often used to translate between domain names (e.g. foobar.Princeton.EDU) and IP addresses (e.g. 128.112.252.7).
How to Determine Your Ethernet or Wireless Hardware Address: Instructions for determing the Ethernet or Wireless hardware address on some common platforms.
Identify My Computer: A tool to display the Princeton University Host Database entry corresponding to the IP address your computer is currently using.
DNS Lookup: A tool to lookup a hostname or IP address in the Internet's Domain Name System. (This is not the same as looking up an entry in the Princeton University Host Database.) The tool is only available to on-campus clients.
Categorize IP Address: Given an IP address on the Princeton University campus network, this tool will categorize the IP address into one of several broad categories; e.g. OIT Static IP Address, OIT Mobile IP Address, Temporary Visitor Wireless Network Access (TVWNA) IP Address, etc.
Temporary Unregistered Dormnet (TUD) IP Address Service: TUD Service allows devices attached to the Dormnet network but not currently subscribed to Dormnet to have some limited access to campus network. This service is provided for the sole purpose of allowing students to submit Dormnet Subscription forms from their own computers before those computers are receiving normal Dormnet service (because they are not yet subscribed to Dormnet).
Temporary Visitor Wireless Network Access (TVWNA): Temporary Visitor Wireless Network Access (TVWNA) provides short-term Internet connectivity to wireless devices brought by visitors to Princeton University. Wireless service is available in select campus locations.
Visitor IP (VIP) Service: Visitor IP Service provides Internet service to devices not registered in the Host Database when they are attached via Ethernet to the guestnet network in the guest rooms of Palmer House. (The service is not designed for use outside Palmer House.)
Network Time Protocol (NTP) Service: A description of the Network Time Protocol (NTP) Service we provide. The Network Time Protocol allows network-attached computing devices to synchronize their time/date clocks automatically.
Virtual Private Network Services: OIT provides a Virtual Private Network (VPN) Service for clients that support Microsoft PPTP-based VPNs. VPN service provides a degree of security for traffic crossing the network. It also provides a temporary Princeton University presence, and a temporary Princeton University IP address and hostname to a VPN client, even if the client is connected via the Internet outside the University.
Connecting a Private Ethernet Repeater, Bridge, or Switch to the Campus Network: Describes issues specific to connecting a private repeater, bridge, or switch to the campus network. Included are caveats and appropriate Host Database registration procedures.
Connecting a Private Network Address Translator to the Campus Network: Describes issues specific to connecting a private Network Address Translator (NAT) to the campus network. Included are caveats and appropriate Host Database registration procedures.
IP Network Ranges at Princeton University: A list of IP network ranges that are part of the Princeton University network.
OIT VoIP Ethernet Service: OIT VoIP Ethernet Service is used to connect Voice over IP telephone handsets via Ethernet wiring. The service is available in a very small number of buildings.
Reunions Network Service: Alumni visiting campus during Reunions may attach their network-ready computers to the campus network.
External Customer Networks: Describes a network service provided by OIT to some external organizations at the University.
External Customer Network Assignments: A list of IP network ranges, subnet masks, and default routers for all external customer networks provided by OIT.
Traffic Filters on the Campus Network: Summarizes filters that block selected traffic on the campus network, with pointers to more detailed information.
Traffic Filters at the University's Internet Borders: A description of the filters that block selected traffic as it passes through OIT-managed borders between the campus network and the Internet.
OIT Filters mDNS (Multicast Domain Name Service): A description of how and why OIT filters Multicast Domain Name Service traffic on the campus network.
DSL: High speed internet access in the Princeton area: This document published by the OIT Help Desk lists a number of commercial DSL providers in the Princeton area.
Campus Network Overview - Part 1 Campus Network Overview - Part 2: Slides presenting an overview of the campus network as of May 2009.
OIT VoIP Service Network ("subnet") List: This document shows the association between buildings and the subnets that support OIT VoIP Service. These are not the subnets used for the "regular" campus data network.
Software for Network Administrators: A small collection of software developed or modified by OIT Network Systems, of possible use to other network administrators.