[vpn-help] Header verification failed

[Kevin VPN]

On 02/08/2013 07:18 PM, Tiago Vasconcelos wrote:
> Server: strongSwan 4.6 (on Linux)
> Windows 7 native IPsec client: works
> Shrew 2.2.0-rc-2 client: not working
>
<snip>
>
> On the server side:
>
>   07[ENC] header verification failed
>   07[NET] received invalid IKE header from 87.166.36.148 -   ignored
>   07[ENC] header verification failed
>   07[NET] received invalid IKE header from 87.166.36.148 - ignored
>
>
> What could cause this error "header verification failed"?
>

Hi Tiago,

My guess would be that the Shrew client configuration settings are not 
correct for your strongSwan gateway.

The Shrew Access Manager output is not particularly useful for 
debugging.  Could you instead generate a log file as described on the 
Bug Report page:
http://www.shrew.net/support/VPN_Bug_Report_Windows

Remember to change the Log output level to something verbose like 
informational or debug.

Then send us the log file and we'll take a look at it, it might tell us 
something about the connection failure.