Which configuration implements an ingress traffic filter on a dual-stack ISR border router to prevent attacks from the outside to services such as DNSv6 and DHCPv6?
A.
! ipv6 access-list test deny ipv6 FF05::/16 any deny ipv6 any FF05::/16 ! output omitted permit ipv6 any any !
B.
! ipv6 access-list test permit ipv6 any FF05::/16 ! output omitted deny ipv6 any any !
C.
! ipv6 access-list test deny ipv6 any any eq dns deny ipv6 any any eq dhcp ! output omitted permit ipv6 any any !
D.
! ipv6 access-list test deny ipv6 any 2000::/3 ! output omitted permit ipv6 any any !
E.
! ipv6 access-list test deny ipv6 any FE80::/10 ! output omitted permit ipv6 any any
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kudlaaaaty
5 years ago