ZyXEL Communications XGS2210-28 User Manual page 202

Table 77 Advanced Application > Port Security (continued)
LABEL DESCRIPTION
Active Select this check box to enable the port security feature on this port. The Switch forwards
packets whose MAC address(es) is in the MAC address table on this port. Packets with no
matching MAC address(es) are dropped.
Clear this check box to disable the port security feature. The Switch forwards all packets on this
port.
Address MAC address learning reduces outgoing broadcast traffic. For MAC address learning to occur
Learning on a port, the port itself must be active with address learning enabled.
Limited Number Use this field to limit the number of (dynamic) MAC addresses that may be learned on a port. For
of Learned MAC example, if you set this field to "5" on port 2, then only the devices with these five learned MAC
Address addresses may access port 2 at any one time. A sixth device would have to wait until one of the
five learned MAC addresses aged out. MAC address aging out time can be set in the Switch
Setup screen. The valid range is from "0" to "16K". "0" means this feature is disabled.
Apply Click Apply to save your changes to the Switch's run-time memory. The Switch loses these
changes if it is turned off or loses power, so use the Save link on the top navigation panel to save
your changes to the non-volatile memory when you are done configuring.
Cancel Click Cancel to begin configuring this screen afresh.
Chapter 19 Port Security
XGS2210 Series User's Guide
202