Which statement about IPv6 RA Guard is true?

Which statement about IPv6 RA Guard is true?
A . It does not offer protection in environments where IPv6 traffic is tunneled.
B . It cannot be configured on a switch port interface in the ingress direction.
C . Packets that are dropped by IPv6 RA Guard cannot be spanned.
D . It is not supported in hardware when TCAM is programmed.

View Answer

Answer: A

Explanation:

https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/ipv6_fhsec/configuration/xe-3s/ip6f-xe-3s-book/ip6-ra-guard.html#GUID-589AF00C-7499-439F-AD23-51005D61CAB7

The IPv6 RA Guard feature does not offer protection in environments where IPv6 traffic is tunneled.

Reference: https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/ipv6_fhsec/configuration/xe-16/ip6f-xe-16-book/ip6-ra-guard.pdf