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Firewall/Access Control List Policy

Version 1.2


This policy is to ensure that the University’s IT Resources are properly protected behind network firewalls or other network devices that utilize access control lists (ACLs).


This IT policy, and all policies referenced herein, shall apply to all members of the University community including faculty, students, administrative officials, staff, alumni, authorized guests, delegates, and independent contractors (the “User(s)” or “you”) who use, access, or otherwise employ, locally or remotely, the University’s IT Resources, whether individually controlled, shared, stand-alone, or networked.

Policy Statement

  • Users who have the ability to grant access to restricted network devices including but not limited to routers, switches, and firewalls must abide by the rules in this policy.
  • Users must verify that firewalls, switches, and router configuration standards are reviewed and examined on a semi-annual basis.
  • All IT Resources that allow access to data, systems, and networks must contain a default “deny all” inbound access rule.
  • All IT Resources on high-risk networks, such as the PCI1 and DMZ (demilitarized zone) networks, must also contain a “deny all” rule on outbound traffic.
  • IT Resources on the PCI networks must be secured from direct public access.
  • Any request for access must be approved by the University Information Security Office (UISO) via the Firewall/Network ACL Change procedure.
  • Outbound traffic from PCI networks to the Internet must be explicitly authorized by the UISO.

1 The Payment Card Industry Security Standards Council (PCI SSC) was launched on September 7, 2006, to manage the ongoing evolution of the Payment Card Industry (PCI) security standards with a focus on improving payment account security throughout the transaction process. The PCI DSS is administered and managed by the PCI SSC, an independent body that was created by the major payment card brands (Visa, MasterCard, American Express, Discover, and JCB).


DMZ is a physical or logical subnetwork that contains and exposes an organization's external-facing services to an untrusted network, usually a larger network such as the Internet.

IT Resources include computing, networking, communications, application, and telecommunications systems, infrastructure, hardware, software, data, databases, personnel, procedures, physical facilities, cloud-based vendors, Software as a Service (SaaS) vendors, and any related materials and services.

Related Policies and Procedures

Implementation Information

Review Frequency: Annual
Responsible Person: Director, IT Risk and Data Integrity
Approved By: CISO
Approval Date: March 1, 2017

Revision History

Initial policy
Grammatical changes to definitions. No changes to the policy.
Updated disclaimer, scope, and definitions
Updated links
Updated policy statement and definitions.
1.2 07/26/2021 Updated purpose and policy statements







Policy Disclaimer Statement

Deviations from policies, procedures, or guidelines published and approved by the University Information Security Office (UISO) may only be done cooperatively between the UISO and the requesting entity with sufficient time to allow for appropriate risk analysis, documentation, and possible presentation to authorized University representatives. Failure to adhere to UISO written policies may be met with University sanctions.