Perle Systems Technical Notes
Using Access Control Lists for Industrial Switch Management
Access lists are an integral part of working with switches, and they are vital to security.
Perle supports Management Access List ( ACL ) to give administrators the ability to restrict which workstations have access to the management interface of the DIN Rail Ethernet Switches. By specifying which IP addresses are allowed, the switch can block attempted access from unauthorized workstations that are not specified in the Access List.
Application types by IP port number can also be restricted. As an example, an administrator could allow only encrypted type applications such as SSH and HTTPS access ( IP ports 22 and 443 ) and disallow an attempted access via Telnet ( IP port 23 ).
Management Access List is supported in Perle Industrial Managed Switches with the PRO software feature set.
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