Cisco 350 Series Administration Manual page 585

Security: IPv6 First Hop Security
IPv6 First Hop Security Overview
Cisco 350, 350X and 550X Series Managed Switches, Firmware Release 2.4, ver 0.4
IPv6 First Hop Security Perimeter
IPv6 First Hop Security switches can form a perimeter separating untrusted area from trusted
area. All switches inside the perimeter support IPv6 First Hop Security, and hosts and routers
inside this perimeter are trusted devices. For example, in
inner links inside the protected area.
Figure 2 IPv6 First Hop Security Perimeter
Figure 2 Switch B and Switch C are
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