IP Address Space at U.Va.

[Nov 23, 2009 14:09] Web access to Microsoft Live@edu accounts now works.

This page describes the overall IP (Internet protocol) address space in use at the University of Virginia.

U.Va. owns 2 class B public networks and has the use of parts of a third. Public IP address space can connect to other public addresses anywhere on the Internet. Addresses and networks in the U.Va. public address space must be allocated by hostmaster@virginia.edu or by the ITC DHCP servers.

Public IP address ranges

Network IP/Mask CIDR Range start Range end
Standard 128.143.0.0/255.255.0.0 128.143.0.0/16 128.143.0.1 128.143.255.255
Secure 137.54.0.0/255.255.0.0 137.54.0.0/16 137.54.0.1 137.54.255.255
Dormitories 199.111.160.0/255.255.224.0 199.111.160/19 199.111.160.1  199.111.191.255
Dormitories 199.111.192.0/255.255.192.0 199.111.192/18 199.111.1921 199.111.255.255

In addition U.Va. makes use of private IP address space. No private IP address attached to the U.Va. network can be seen or accessed anywhere outside the U.Va. network.

Internal only Private IP address ranges

Network IP/Mask CIDR Range start Range end
Registration 10.160.0.0/255.248.0.0 10.160.0.0/13 10.160.0.1 10.167.255.255
Standard 172.16.0.0/255.255.0.0 172.16.0.0/16 172.16.0.1 172.16.255.255
Secure 172.18.0.0/255.255.0.0 172.18.0.0/16 172.18.0.1 172.18.255.255
Dormitories 172.19.0.0/255.255.0.0 172.19/16 172.19.0.1 172.19.255.255

 

Wireless Private IP address ranges

Network IP/Mask CIDR Range start Range end
More Secure encrypted (jefferson) 172.23.0.0/255.255.0.0 172.23/16 172.23.0.1 172.23.255.255
Standard encrypted (cavalier) 172.25.0.0/255.255.0.0 172.25/16 172.25.0.1 172.25.255.255
Dormitories encrypted (cavalier) 172.26.0.0/255.255.128.0 172.26.0.0/17 172.26.0.1 172.26.127.255
Dormitories unencrypted (wahoo) 172.26.128.0/255.255.128.0 172.26.128.0/17 172.26.128.1 172.26.255.255
Standard unencrypted (wahoo) 172.27.0.0/255.255.0.0 172.27/16 172.27.0.1 172.27.255.255

These wireless networks have outbound access to the Internet through network address translation, which provides a tempoary public IP address.

For further information, see Use of Private IP Space at U.Va.

© 2009 by the Rector and Visitors of the University of Virginia.

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