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IPSEC tunnel

moamen.elhefnawy
Level 4
Level 4

‎04-25-2005 10:56 AM - edited ‎02-21-2020 01:44 PM

Hello,

I have a log on the router that shows a problem in the tunnel;

%CRYPTO-4-IKMP_PKT_OVERFLOW: ISAKMP message from Ip-adsress larger (-1553241989) than the UDP packet length (100)

and Cisco stated that it may indicate a DoS attack , but I don't know how to troubleshoot this problem and what is the cause ?

Kindly advice.

Thanks & BR

Ahmed

2 people had this problem
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lgijssel
Level 9
Level 9

‎04-26-2005 03:41 AM

Could you please paste a few complete lines of this error message without any modifications? Also, please give some more background info about the network setup.

Regards,

Leo

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moamen.elhefnawy
Level 4
Level 4
In response to lgijssel

‎05-01-2005 10:10 PM

I just removed the IP address from the line

and it is a tunnel between 2 routers

Ahmed

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