Outbound ICMPv6 traffic is not blocked

From Perimeter Router Security Technical Implementation Guide Juniper

Rules

SV-15375r2_ruleThe network element can permit outbound ICMPv6 messages Packet-too-big (type 2), Echo Request (type 128), and Neighborhood Discovery (type 135-136). Remaining ICMPv6 messages must be blocked outbound.

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