Hi all , i got this msg on my 3845.. and after some search I found that cisco relate the errors to this ... but could not understand what needs to be done. by the way my errors does not have " connection id=#." statement
This output shows an example of the 'Replay Check Failed' error:
"%CRYPTO-4-PKT_REPLAY_ERR: decrypt: replay check failed connection id=#." This error is a result of reordering in transmission medium (especially if parallel paths exist), or unequal paths of packet processing inside Cisco IOS for large versus small packets plus under load. Change the transform-set to reflect this. The reply check is only seen when transform-set esp-md5-hmac is enabled. In order to surpress this error message, disable esp-md5-hmac and do encryption only. Refer to Cisco bug ID CSCdp19680 ( registered customers only) .