Encryption By encrypting data at the data link layer, MACsec
prevents eavesdropping and makes sure that intercepted data cannot be read by
unauthorized parties.
Integrity Checks MACsec performs integrity checks on all data
frames, detecting any unauthorized modifications and making sure that data has
not been tampered with in transit.
Authentication Before establishing a secure link, MACsec requires
devices to authenticate themselves, preventing unauthorized devices from joining
the network.
Replay Protection By including sequence numbers and timestamps in
the data frames, MACsec mitigates the risk of replay attacks.