Introduction
The Firewall Service plan offers a limited number of firewall service
protection groups to the campus community. There is no cost to participate
in the firewall groups.
Currently, there are two firewall systems located on the entrance
and exit points to and from the campus network. Policies implemented
on these firewalls protect departmental computers from network traffic
that crosses the campus entrance and exit points. For example, firewall
protection controls traffic that originated from off-campus, but any
traffic that is internal to campus would not cross the firewalls and
therefore would not be affected by the firewall rules.
Note that the firewalls at the entrance and exit points of campus
will neither isolate nor protect departments from other entities on
campus. These firewalls are designed to protect campus systems from
off-campus threats.
About the firewall groups
Six standard firewall groups are available. The settings on these
groups cannot be customized for individual machines; any computer
that is assigned to the group will be subject to the group's settings.
Plan details
Descriptions of the firewall groups available for campus systems, including
descriptions of their advantages and disadvantages.
How to participate in the Firewall Service
Plan
Instructions on how to select IP address ranges for inclusion in firewall
groups and how to apply for firewall group coverage for the selected
systems.
Service Level Definition
Information on the hours of service, maintenance times, and other
service-related details.
More about firewalls
Mark Notarus' March 9, 1999 presentation
discusses the uses of firewalls in a security design. (This presentation
is for further background on what firewalls in general can and cannot
do for security; however, it does not address the specific campus
firewall implementation.)