Networking, Firewall, Powers of Two

This page contains mathematical information about how to calculate IP address ranges for use with the campus firewall groups.

NOTE: The following information applies only to IPv4 address ranges. Network administrators who are configuring firewall ranges for IPv6 should contact Technology Services Network Design & Support at for assistance.

Keywords:IP address, IP ranges, firewall groups, firewall, IPv6, IPv4, Network Tree, netmasks, powers of two, CIDR, Network Ranges   Doc ID:47956
Owner:Network E.Group:University of Illinois Technology Services
Created:2015-03-03 14:57 CDTUpdated:2020-03-16 17:05 CDT
Sites:University of Illinois Technology Services
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