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Lantronix
SM24TBT2DPA and SM24TBT2DPB Web User Guide
2-5.2 Network
2-5.2.1 Limit Control
This page lets you configure the Port Security Limit Control system and port settings.
Limit Control allows for limiting the number of users on a given port. A user is identified by a MAC address
and VLAN ID. If Limit Control is enabled on a port, the limit specifies the maximum number of users on the
port. If this number is exceeded, an action is taken. The action can be one of the four different actions as
described below.
The Limit Control module utilizes a lower-layer module, Port Security module, which manages MAC
addresses learned on the port. The Limit Control configuration page has two sections, a system
configuration section and a port configuration section.
To configure Limit Control at the System level in the web UI:
1. Navigate to Configuration> Security > Network > Limit Control.
2. Select "Enabled" in the Mode column of the System Configuration section.
3. Check Aging Enabled and set Aging Period (default is 3600 seconds).
To configure Port level Limit Control in the web UI:
1. Select "Enabled" in the Mode column of the Port Configuration section.
2. Specify the maximum number of MAC addresses in the Limit column.
3. Set the Action (Trap, Shutdown, or Trap & Shutdown).
4. At the "Sticky" dropdown, select Enabled or Disabled.
5. Click the Apply button.
Figure 2-5.2.1: Port Security Limit Control Configuration page
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