network

(This page was adapted from an OIT KnowledgeBase page.)

The following globally routable IP network ranges are currently part of the Princeton University campus network:

(Portions adapted from an OIT KnowledgeBase page.)

Network Time Protocol (NTP) Service allows devices to set their date/time clock to a known-good clock, and to keep their clock synchronized with a high degree of accuracy.

CS provides several NTP servers for use by devices attached to the campus network.

Microsoft's remote desktop protocol (RDP), virtual network computing (VNC), and other remote desktop access software allow users to remotely control another computer. Popular uses of the technology include remote technical support, and accessing files on one's work computer from one's home computer, etc. The software transmits the keyboard presses and mouse clicks from one computer to another relaying the screen updates back in the other direction, over a network.

A virtual LAN, commonly known as a vLAN or as a VLAN, is a method of creating independent logical networks within a physical network. Several VLANs can co-exist within such a network. This helps in reducing the broadcast domain.

Inbound Access to CS Department Resources

The CS firewall controls outside access to systems inside the department in order to provide system and network security. Below is a table listing which protocols may be used, and to which systems. Most of the host names below are aliases, so that we can configure the best machine to provide a given service without requiring that our users learn new host names. In particular, portal.cs.princeton.edu, is an alias for multiple systems.

Overview

OIT provides wireless connectivity in the CS Building. Aruba Access Points are installed in the CS building, providing 802.11a/g/n/ac coverage on all floors.  More information about coverage support and protocol support can be found here.

Additional details about the campus wireless service can be found here:
https://princeton.service-now.com/service?id=kb_article&sys_id=KB0013151

The Princeton University campus network is connected to both the Internet (a worldwide collection of interconnected networks that all use the TCP/IP protocols) and to Internet2 (a consortium of over 207 universities working in partnership with industry and government to develop and deploy advanced network applications and technologies). The connections to the Internet and I2 provide the campus with a vast array of services and information, including access to the worldwide web and electronic mail.

Princeton University is a member and participant in Internet 2 which is a very high-speed network supporting communication and research among I2 members. Many educational, government, and research organizations are members of Internet 2. Internet 2 is similar in structure to the Internet (both use TCP/IP), but I2 provides significantly higher communication speed end-to-end which improves service and enables new applications.

From time to time, you may need to get one or more files into or out of the department. This file transfer can be done in a few different ways, some secure and some not. The recommended method of transferring a file is to either use an encrypted mechanism or one that does not require you to enter a username and password. The preferred method is to use SCP/SFTP, which is part of the SSH suite of programs.