From the navigation tree, double-click Security.
In the Security tree, double-click MAC Security.
In the work area, click the SecurityList tab.
In the toolbar, click Insert.
The Insert SecurityList dialog box appears.
In the SecurityListIndx box, type a number for security list.
Click the SecurityListMembers ellipsis (...).
In the SecurityListMembers dialog box, select ports to add to the security list.
OR
Click All to select all ports.
Click Ok.
Click Insert.