MAC problem???

[irelandsky]

Hi all,

sometimes i receive this error on my router ( this is the end point of my VPN ): %CRYPTO-4-RECVD_PKT_MAC_ERR

It seem an authentication error, but the problem occour only few times during the day and not always...

Any suggestion will be appreciate

Marco

[kmarrero]

%CRYPTO-4-RECVD_PKT_MAC_ERR : decrypt: mac verify failed for connection id=[dec]

Explanation The MAC verify processing failed. This may be caused by the use of the wrong key by either party during the MAC calculations. This activity could be considered a hostile event.

Recommended Action Contact the peer administrator.

Found here:

http://www.cisco.com/en/US/products/sw/iosswrel/ps1835/products_system_message_guide_chapter09186a008009e75f.html#97664

[irelandsky]

Thanks you for your reply, but i've also found this explanation on cisco web site.

But i don't uderstand why sometimes the VPN comes up and sometimes not... so i think that the key is correct... any idea??

Marco