Wake-on-LAN Traffic
The Wake-on-LAN feature is used by network administrators to remotely power on a sleeping workstation (for example, during early morning hours to perform routine maintenance operations, such as patch management and software updates).
The aaa port-access controlled-direction
in command allows Wake-on-LAN traffic to be transmitted
on an 802.1X-aware egress port that has not yet transitioned to the
802.1X authenticated state; the controlled-direction both setting
prevents Wake-on-LAN traffic to be transmitted on an 802.1X-aware
egress port until authentication occurs.
Although the controlled-direction in setting
allows Wake-on-LAN traffic to traverse the switch through unauthenticated
802.1X-aware egress ports, it does not guarantee that the Wake-on-LAN
packets will arrive at their destination. For example, firewall rules
on other network devices and VLAN rules may prevent these packets
from traversing the network.