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ITS Network Services

Use of Private IP Address Space at UVa

This document outlines the use of the private IP ranges at UVa

Private IP Networks

UVa makes use of private IP address space. Internet standards define private IP address space as:

IP/Mask CIDR Range start Range end
10.0.0.0/255.0.0.0 10.0.0.0/8 10.0.0.1 10.255.255.255
172.16.0.0/255.240.0.0 172.16.0.0/12 172.16.0.1 172.31.255.255
192.168.0.0/255.255.0.0 192.168.0.0/16 192.168.0.1 192.168.255.255

ITS Reserved Private IP Networks

No school or department should make use of any address in the private IP address ranges reserved by UVa. UVa reserves the following private IP address ranges:

IP/Mask CIDR Range start Range end
10.0.0.0/255.0.0.0 10.0.0.0/8
(except 10.129.0.0/16)		 10.0.0.1 10.255.255.255
172.16.0.0/255.240.0.0 172.16.0.0/12 172.16.0.1 172.31.255.255
192.168.1.0/255.255.255.0 192.168.1.0/24 192.168.1.1 192.168.1.255

If use is made of any reserved private IP address space, and that use causes a problem on the UVa network, ITS reserves the right to disconnect the problem network segment until the problem is resolved.

ITS Recommended Private IP Networks

Some schools and departments may discover that they have need for private IP address space on the local networks they use at UVa. Most commonly this private IP address space is needed for firewalls, VPNs (virtual private networks), or computer clusters.

Any school or department that wishes to use private IP address space safely on the UVa network should use addresses from either of these ranges:

IP/Mask CIDR Range start Range end
192.168.0.0/255.255.0.0 192.168.0.0/16
(except 192.168.1.0/24)		 192.168.0.1 192.168.255.255
10.129.0.0/255.255.0.0 10.129.0.0/16 10.129.0.1 10.129.255.255

This private network space can be used freely and will not be interfered with by ITS, however there is no guarantee you will not collide with another group that shares your network.

  Page Updated: Tuesday 2012-01-24 11:54:37 EST

Standards & Policy

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Page Updated: 2012-01-24; © 2012 by the Rector and Visitors of the University of Virginia.

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