Exam 300-410 Topic 6 Question 529 Discussion

Actual exam question for Cisco's 300-410 exam
Question #: 529
Topic #: 6
What is a limitation of IPv6 RA Guard?

Suggested Answer: B Vote an answer

Explanation
Restrictions for IPv6 RA Guard
* The IPv6 RA Guard feature does not offer protection in environments where IPv6 traffic is tunneled.
* This feature is supported only in hardware when the ternary content addressable memory (TCAM) is
* programmed.
* This feature can be configured on a switch port interface in the ingress direction.
* This feature supports host mode and router mode.
* This feature is supported only in the ingress direction; it is not supported in the egress direction.
* This feature is not supported on EtherChannel and EtherChannel port members.
* This feature is not supported on trunk ports with merge mode.
* This feature is supported on auxiliary VLANs and private VLANs (PVLANs). In the case of PVLANs, primary VLAN features are inherited and merged with port features.
* Packets dropped by the IPv6 RA Guard feature can be spanned.
Reference:
https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/ipv6_fhsec/configuration/xe-16-10/ip6f-xe-16-10-book/ip6-ra

by Kent at Feb 27, 2026, 12:44 PM

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