Cisco Systems, Inc

OUI: 00:21:A1

Range: 00:21:A1:00:00:00 - 00:21:A1:FF:FF:FF

Block Size: 16777215 (16.77 M)

Universally administered addresses (UAA) : the address is uniquely assigned by its manufacturer.

Type of transmission: Unicast

Wireshark:

Cisco