Refer to the exhibit.
After setting the replay window size on your Cisco router, you received the given system
message. What is the reason for the message?
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A.
The replay window size is set too low for the number of packets received.
B.
The IPSec anti-replay feature is enabled, but the window size feature is disabled.
C.
The IPSec anti-replay feature is disabled.
D.
The replay window size is set too high for the number of packets received.
Explanation:
If your replay window size has not been set to a number that is high enough for the
number of packets received, you will receive a system message such as the following:
*Nov 17 19:27:32.279: %CRYPTO-4-PKT_REPLAY_ERR: decrypt: replay check failed
connection id=1
The above message is generated when a received packet is judged to be outside the
anti-replay window.Reference: http://www.cisco.com/c/en/us/td/docs/iosxml/ios/sec_conn_dplane/configuration/12-4t/sec-ipsec-data-plane-12-4t-book/secipsec-antireplay.html