C3750e-universalk9-mz.150-2.se11.bin

: Features such as RA Guard, DHCPv6 Guard, and IPv6 Source Guard help protect the local network against rogue IPv6 devices.

: universalk9 indicates it includes all software features (base, services, and advanced) which are typically unlocked via licenses (Right-To-Use or permanent). c3750e-universalk9-mz.150-2.se11.bin

: Indicates the target hardware platform, the Cisco Catalyst 3750-E series. universalk9 : Features such as RA Guard, DHCPv6 Guard,