The VPN is currently up, there is no traffic crossing the tunnel and DPD packets are being interchanged between both IPsec gateways. However, the IKE real time debug does NOT show any output. Why isn’t there any output?

Examine the IPsec configuration shown in the exhibit; then answer the question below.

An administrator wants to monitor the VPN by enabling the IKE real time debug using these commands:

diagnose vpn ike log-filter src-addr4 10.0.10.1

diagnose debug application ike -1

diagnose debug enable

The VPN is currently up, there is no traffic crossing the tunnel and DPD packets are being interchanged between both IPsec gateways. However, the IKE real time debug does NOT show any output. Why isn’t there any output?
A . The IKE real time shows the phases 1 and 2 negotiations only. It does not show any more output once the tunnel is up.
B . The log-filter setting is set incorrectly. The VPN’s traffic does not match this filter.
C . The IKE real time debug shows the phase 1 negotiation only. For information after that, the administrator must use the IPsec real time debug instead: diagnose debug application ipsec -1.
D . The IKE real time debug shows error messages only. If it does not provide any output, it indicates that the tunnel is operating normally.

View Answer

Answer: A