Finding IP Addresses at Virginia Tech


(To request updates for this page, contact 4Help by clicking Get Help on the 4Help portal with the updated information.)

(To search for words or numbers on this page, use your browser's find feature by pressing Ctrl + F on your keyboard.)

Introduction

As part of the regular security configuration of various information resources at Virginia Tech, system administrators sometimes want to restrict access to certain services to what are commonly referred to as "Virginia Tech" hosts. There is often considerable confusion about what this means as well as which addresses should be covered in this matter. Following is information you need to know before restricting access to any of the addresses listed below.

It is imperative to note that any network traffic with source address matching one of the below addresses does not guarantee that the originator of the traffic is either affiliated with Virginia Tech or on the Virginia Tech campus. The reasons for this are varied, but include:

Additionally, there are many Virginia Tech affiliates, including those who are resident at remote sites (e.g. Northern Virginia) or who have an alternative ISP, who may be inappropriately excluded from those services which use source IP address as a method of access control.

It must be recognized, therefore, that restricting access on the basis of source IP address is seldom a worthwhile security measure for services that should be available to a large portion of the Virginia Tech community. It does not accurately specify that the person of said source address is or is not a Virginia Tech affiliate, nor does access control based on IP address obviate the need for user-level access control.

A more serious concern is the management of the networks involved. On networks managed by Network Infrastructure and Services (NI&S), it is reasonably safe to say that if there is misconduct from a network user, calling 4Help will likely curtail the problem. This may or not be the case for other networks.

NI&S offers a remote access service that includes a Virtual Private Network (VPN) so that you can have an "on-campus" address no matter where you are. For more information, see Remote Access VPN (PulseSecure).

Top of page

Explanation

Following are the IP addresses for the Virginia Tech community. These data are in network address/network mask length format. For help with understanding this format, refer to Wikipedia's IPv4 Subnetting Reference.

While best effort is made to maintain the information on this page, these data are not guaranteed to be up-to-date.

(To request updates for this page, contact 4Help by clicking Get Help on the 4Help portal with the updated information.)

Top of page

Blacksburg Campus

Managed by NI&S

External IP Addresses

Managed by Duo

Northern Virginia Center

Managed by NI&S

Blacksburg Residential

Richmond Outreach Office

Managed by RC

Equine Medical Center

Managed by NI&S

Occoquan Lab

Managed by NCR

38.68.253.0/24

601 Prince Street, Alexandria

Managed by NCR

38.68.254.0/24

1021/1001 Prince Street, Alexandria

Managed by NCR

38.68.251.0/24

Hampton Roads Higher Ed and Extension Center

Managed by EXT

208.22.130.0/24

Roanoke Education Center

63.167.242.0/24

WVTF in Roanoke

Managed by VTA

Center for European Studies and Architecture, Switzerland

Managed by CESA

195.176.186.64/28

Richmond Graduate Center

Managed by RC

206.105.198.0/24

Virginia Cooperative Extension

Managed by EXT

208.22.128.0/19

Virginia Tech Research Center, 900 North Glebe, Arlington

Managed by NCR

Tire center near Danville

64.203.145.225/25

VT Customer Subnets on Cloud Platforms

Managed by NI&S

Top of page

Contact Information

Blacksburg Campus

Notes

National Capital Region (NCR)

Notes

Richmond Center (RC)
Extension (EXT)
VTACS (VTACS)
Center for European Studies and Architecture (CESA)
Virginia Tech Advancement
ARIN Whois

You may also be able to find contact information for these sites using ARIN's Whois search.

Top of page