HP 6120G/XG HP ProCurve Series 6120 Blade Switches Access Security Guide - Page 538
Feature Interactions When Eavesdrop Prevention is Disabled, port-access, continuous
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Configuring and Monitoring Port Security Port Security Feature Interactions When Eavesdrop Prevention is Disabled The following table explains the various interactions between learning modes and Eavesdrop Prevention when Eavesdrop Prevention is disabled. Note When the learning mode is "port-access", Eavesdrop Prevention will not be applied to the port. However, it can still be configured or disabled for the port. Learn Mode Static Continuous Port-access Limited-continuous Configured Effect When Eavesdrop Prevention is disabled, the port transmits packets that have unknown destination addresses. The port is secured and only a limited number of static MAC addresses are learned. A device must generate traffic before the MAC address is learned and traffic is forwarded to it. The default. The Eavesdrop Prevention option does not apply because port security is disabled. Ports forward traffic with unknown destination addresses normally. Disabling Eavesdrop Prevention is not applied to the port. There is no change. When Eavesdrop Prevention is disabled, the port transmits packets that have unknown destination addresses. The port is secured; MAC addresses age normally. Eavesdrop Prevention may cause difficulties in learning MAC addresses (as with static MAC addresses) and cause serious traffic issues when a MAC ages out. When Eavesdrop Prevention is disabled, the port transmits packets that have unknown destination addresses. The port is secured by a static MAC address. Eavesdrop Prevention should not cause any issues because all valid MAC addresses have been configured. Syntax [no] port-security eavesdrop-prevention When this option is enabled, the port is prevented from transmitting packets that have unknown destination addresses. Only devices attached to the port receive packets intended for them. This option does not apply to a learning mode of port-access or continuous. Default: Enabled 13-6