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 |
| More 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 |
| More 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) | 172.26.0.0/255.255.0.0 | 172.26/16 | 172.26.0.1 | 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.