Question 10
An R82 gateway maintains a permanent site-to-site tunnel to a third-party IPsec firewall. Traffic becomes idle and Check Point tunnel-test packets receive no useful response. The peer supports standards-based IKE keepalives. What monitoring method fits this interoperability requirement?
Explanation
Correct Answer
Use IKE Dead Peer Detection on the permanent interoperable tunnel; the proprietary Check Point tunnel test is not supported by third-party peers.
Incorrect Answers
Simply marking a tunnel permanent without changing its monitoring method retains the interoperability problem.
Making the entire community permanent does not make proprietary tunnel tests interoperable.
Periodic Check Point tunnel-test packets rely on a Check Point peer and do not test this third-party firewall.