CAS-003 · Question #85
Since the implementation of IPv6 on the company network, the security administrator has been unable to identify the users associated with certain devices utilizing IPv6 addresses, even when the…
The correct answer is B. The routers implement NDP G. The administrator must disable the IPv6 privacy extensions. IPv6 makes use of the Neighbor Discovery Protocol (NDP). Thus if your routers implement NDP you will be able to map users with IPv6 addresses. However to be able to positively map users with IPv6 addresses you will need to disable IPv6 privacy extensions.
Question
Since the implementation of IPv6 on the company network, the security administrator has been unable to identify the users associated with certain devices utilizing IPv6 addresses, even when the devices are centrally managed. en1: flags=8863<UP,BROADCAST,SMART,RUNNING,SIMPLEX,MULTICAST> mtu 1500 ether f8:1e:af:ab:10:a3 inet6 fw80::fa1e:dfff:fee6:9d8%en1 prefixlen 64 scopeid 0x5 inet 192.168.1.14 netmask 0xffffff00 broadcast 192.168.1.255 inet6 2001:200:5:922:1035:dfff:fee6:9dfe prefixlen 64 autoconf inet6 2001:200:5:922:10ab:5e21:aa9a:6393 prefixlen 64 autoconf temporary nd6 options=1<PERFORMNUD> media: autoselect status: active Given this output, which of the following protocols is in use by the company and what can the system administrator do to positively map users with IPv6 addresses in the future? (Select TWO).
Options
- AThe devices use EUI-64 format
- BThe routers implement NDP
- CThe network implements 6to4 tunneling
- DThe router IPv6 advertisement has been disabled
- EThe administrator must disable IPv6 tunneling
- FThe administrator must disable the mobile IPv6 router flag
- GThe administrator must disable the IPv6 privacy extensions
- HThe administrator must disable DHCPv6 option code 1
How the community answered
(44 responses)- B43% (19)
- C30% (13)
- D2% (1)
- E14% (6)
- F9% (4)
- H2% (1)
Explanation
IPv6 makes use of the Neighbor Discovery Protocol (NDP). Thus if your routers implement NDP you will be able to map users with IPv6 addresses. However to be able to positively map users with IPv6 addresses you will need to disable IPv6 privacy extensions.
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