IPv6 Site Local Unicast Addresses are not blocked

From Perimeter L3 Switch Security Technical Implementation Guide - Cisco

Rules

SV-15399r2_ruleThe network element will be configured to ensure IPv6 Site Local Unicast addresses are blocked on the ingress inbound and egress outbound filters, (FEC0::/10). Note that this consist of all addresses that begin with FEC, FED, FEE and FEF.

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