Media Access Control Security (
MACsec, IEEE 802.1AE) encrypts and authenticates all traffic in LANs with the GCM-AES-128 algorithm.
MACsec can protect not only
IP but also Address Resolution Protocol (ARP), Neighbor Discovery (ND), or
IPsec operates on the network layer (layer 3) and
TLS on the transport layer (layer 4),
MACsec operates in the data link layer (layer 2). Combine
MACsec with security protocols for other networking layers to take advantage of different security features that these standards provide.