Configuring the switch to filter untagged traffic
Enter this command to configure the switch not to learn CDP, LLDP, or EAPOL traffic for a set of interfaces.
Syntax:
no ignore-untagged-mac <port-list>
Prevents MAC addresses from being learned on
the specified ports when the VLAN is untagged and the destination
MAC address is one of the following:
01000C-CCCCCC (CDP)
0180c2- 00000e (LLDP)
0180c2-000003 (EAPOL)
Configuring the switch to ignore packet MAC address learns for an untagged VLAN
switch(config) ignore-untagged-mac 1-2