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Operation
RADIUS Security (Remote Authentication Dial-In User Service)
When optioned at the factory, the modem can support RADIUS (Remote Authentication Dial-In
User Service). RADIUS is an optional software feature for the SpectraComm Manager Card that
allows a modem optioned for RADIUS to open a client service session for RADIUS security. The
modem can be optioned for RADIUS Security at the time of sale, or at a later time through a factory
upgrade.
When RADIUS is enabled in the modem and the SCM, the modem prompts the caller for a
RADIUS user name and a RADIUS password. This information is passed to the secure RADIUS
server via the SCM for authentication. Once authenticated by the RADIUS server, access to the
network is then either granted or denied.
Note
For detailed information on RADIUS including setup, configuration and operation procedures, refer to
the SpectraComm Manager Card (SCM) Manual, Appendix B: SCM with RADIUS.
Confirming RADIUS Capability
To confirm that a particular GDC V.34 modem is capable of RADIUS Security, use the AT
command I4 and check the Product Code field. If the modem is RADIUS capable the screen will
display the following Product option:
Product Code: SEC
Product code SEC indicates that the modem is capable of RADIUS Security. If other Product
codes are displayed, such as 288, your modem will not support RADIUS.
Note
To upgrade your modem to RADIUS capability, ask your GDC Sales Representative for that modem's
RADIUS Feature upgrade (GDC P/N 060U500-D04).
Enabling RADIUS in the Modem
To enable RADIUS at the answering modem, type in the %S2 command. Save the configuration
by typing AT &W and then press Enter. This instructs the modem to perform a RADIUS Security
sequence on every dial-in caller.
Special Considerations
To achieve the highest level of RADIUS Security, perform the following additional steps:
•
Remove all cell passwords from the modem using the %P command. This done, if it should
happen that all RADIUS servers fail or if the SCM fails, Online Security will not be forced on
and all dial-in access to the network will be denied until the servers are back online.
•
Disable the capacity for Remote Configuration of the modem by using the AT *R1 command.
Save this configuration by typing AT &W and then press Enter.
Note
For more information on RADIUS Security, refer to the SpectraComm Manager Card Operation Manual,
Appendix B.
3-14
SpectraComm Dual V.34 Modem
Installation and Operation
Security Overview
060R122-000
Issue 15
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