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Anybody have any idea on 'IPSEC ESP Bad Pad Length'?

See thread 'IPSEC ESP Bad Pad Length #2'

I see VPN 3000 version 4 has a .zip of all messages.

Event ID: IPSEC/18 Severity: 3

Event Text: IPSEC ESP bad pad length (%d) >= buffer length (%d)

Explanation: An internal software error has occurred.

Recommended Action: Copy the error message exactly as it appears on the console or in the system log, contact the Cisco Technical Assistance Center (TAC) for further support and provide the gathered information.

2 REPLIES
VIP Purple

Re: Anybody have any idea on 'IPSEC ESP Bad Pad Length'?

Hello,

this is a know bug in version 3.6.7 of the VPN 3000 concentrator, the bug ID is CSCea08566. Here is the full explanation according to the Cisco Bug Navigator:

Problem:

so many

"IPSEC ESP bad pad length (8) >= buffer length (8)"

messages were logged in a syslog.

Condition :

VPN3000 and PIX EzVPN

-Phase 2 SA recreation after an expiration of a SA because of an idle timeout (30min)

-35 sec after a creation of a new SA after an old SA lifetime Expiration.

Cisco recommends to upgrade the software to a higher version (version 4 is the next higher version I believe).

Regards,

GP

New Member

Re: Anybody have any idea on 'IPSEC ESP Bad Pad Length'?

Thanks kindly.

Is the message a real problem, or just an annoying extraneous error message?

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