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Modem Usage
Policy
Introduction
I. Dial-up Privileges
II. Establishment of Communication Systems
III. Internet Access
IV. Inbound Dial-up Lines
The
following policy has been constructed based on the findings from of a
security audit performed between June 3 and August 20, 2002. Significant
outbound modem use was found during this audit. The majority of this usage
occurred during non-business hours and included calls to external ISPs.
Calls to external ISPs not only present a security threat to the University
network, but also constitute a waste of resources. Internet service is
already available to end clients through the University. Using external
ISPs places an unnecessary burden on the University voice network resources.
The finding of the audit indicated that if this type of traffic was regulated,
the University could reduce the number of the trunks it currently uses,
resulting in a considerable cost savings for the University. The following
policy was created in order to optimize network performance by preventing
unnecessary and unauthorized modem traffic and the resulting waste of
resources.
I. Dial-up Privileges
Non-university personnel must
only be given in-bound dial-up modem privileges when Telecommunications
Manager or Associate Director of Network Services determine that they
have a legitimate business need. These privileges must be enabled only
for the time period required to accomplish the approved tasks.
II. Establishment of Communication Systems
Clients must not establish
local area networks, or modem connections to existing networks, or other
systems for communicating information without the specific written approval
by the Telecommunications Manager or Associate Director of Network Services.
III. Internet Access
Clients must not establish
modem connections to existing internal networks, local area networks,
or other multi-user systems for communicating information without the
specific approval of the Telecommunications Manager or Associate Director
of Network Services.
IV. Inbound Dial-up Lines
Inbound dial-up lines connected to Wright State
University internal networks and/or multi-user computer systems must pass
through an additional access control point (a firewall, modem pool or
similar system) before clients are permitted to reach University resources.
The Modem Usage Policy will be included in the Network Security as follows:
7.5.1 Non-university
personnel must only be given in-bound dial-up modem privileges when Telecommunications
Manager or Associate Director of Network Services determine that they
have a legitimate business need. These privileges must be enabled only
for the time period required to accomplish the approved tasks.
7.5.2 Clients
must not establish local area networks, or modem connections to existing
networks, or other systems for communicating information without the specific
written approval by the Telecommunications Manager or Associate Director
of Network Services.
7.5.3 Clients
must not establish modem connections to existing internal networks, local
area networks, or other multi-user systems for communicating information
without the specific approval of the Telecommunications Manager or Associate
Director of Network Services.
7.5.4 Inbound
dial-up lines connected to Wright State University internal networks and/or
multi-user computer systems must pass through an additional access control
point (a firewall, modem pool or similar system) before clients are permitted
to reach University resources.
7.5.5 All
clients who access the WSU network through dial-in connections should
change access passwords according to the Password Management Policy.
7.5.6 CaTS
will periodically scan lines to monitor compliance with policies.
7.5.7 Remote
access will be accomplished by authenticating through an access server.
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