問題文
The application servers of a data center are reachable over IPv6 only. The security design has to detect the loss of those servers and move the affected group to the other firewall. The team is choosing between a chassis cluster and a Multinode High Availability pair. Which statement about monitoring an IPv6 destination is correct?
選択肢
- Both solutions monitor IPv4 and IPv6 destinations, but a chassis cluster reports the loss of an IPv6 destination to its redundancy group only after the address family has been bound to a monitoring instance of its own, so the two families are weighed separately when the group is scored.
- Neither solution monitors an IPv6 destination directly, so the reachability of an IPv6 server has to be inferred from a Bidirectional Forwarding Detection session that runs over the IPv4 next hop toward it.
- A chassis cluster performs its address monitoring with IPv4 addresses only, while a Multinode High Availability pair accepts IPv6 addresses as well, both for address monitoring and for a Bidirectional Forwarding Detection session.
- A Multinode High Availability pair monitors IPv4 destinations only, so an IPv6 server has to be reached through an address translation rule before the pair is able to monitor it.