Siemens CP 1515 - Manual (Page 268)

268 Industrial Ethernet Wireless LAN RLM Manager, CP 1515 Manager
C79000-G8976-C171-01
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A security feature for RLM that enables you to restrict wireless
access to a access point to authorized stations only.
Authorized stations are identified by the MAC address of their
SIMATIC NET IWL PC Card in a so-called ‘Access Control Table’ file
that is loaded into the SIMATIC NET IWL access points as part of the
configuration
When Access Control is enabled, the Radio Link Module will ignore all
requests to forward data to/from SIMATIC NET IWL devices that are
not identified in the Access Control Table. You can create or edit
Access Control Table files using either the RLM Manager or the CP
1515 program.
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ASCII table that contains all the MAC Addresses of stations
authorized to send/receive data via the Radio Link Module. To build an
Access Control Table you can use the RLM Manager program.