ZyXEL VES1724-56 User Guide - Page 191

CHAPTER 19 MAC Limit This chapter shows you how to set up port or vlan security by limiting learned MAC address(es). 19.1 MAC Limit Overview MAC limit allows only packets with limited and dynamically learned MAC addresses and/or configured static MAC addresses to pass through a port or a VLAN network on the switch. The switch can learn up to 16K (16384 bytes) MAC addresses in total with no limit on individual ports. For maximum port security, enable either port security or VLAN security, disable MAC address learning and configure static MAC address(es) for a port or a VLAN. It is not recommended you disable MAC Limit together with MAC address learning as this will result in many broadcasts. 19.2 MAC Limit Click Advanced Application and MAC Limit in the navigation panel to display the screen as shown. Figure 111 Advanced Application > Port Security The following table describes the labels in this screen. Table 73 MAC Limit LABEL Security Mode DESCRIPTION Select Port Security or VLAN Security and click the Security Mode button to activate MAC limit or not. Select None to disable this function. 19.2.1 Mac Limit: Port Security Select Port Security and click the Security Mode button in the MAC Limit screen to display port security settings as shown. VES1724-56 User's Guide 191