Re: [Fwknop-discuss] fwknop and german DSL / fwknop Windows UI

[Sean G. <sea...@gm...>]

I am aware of a daylight saving bug in the fwknop code.  Please test
by downloading the following file
http://cyber.za.net/Downloads/fwknopclient.zip

unzip it to the install directory



On Wed, Aug 13, 2008 at 3:35 AM, Michael Rash <mb...@ci...> wrote:
> On Aug 12, 2008, hol...@gm... wrote:
>
>> Hello,
>>
>> i found some more issues for that i want to be enlightend.
>>
>>
>> 1. Here in germany the isp cut the DSL line once a day.
>>    After the line gets redialed fwknop does not work any longer,
>>    until it is restarted. I could reproduce this behavior.
>>
>>    My workaround is, after reconnection, not just start the iptables
>>    script again, also restart fwknop. This helps so far.
>
> I suspect that the sniffing interface is going down when the DSL line is
> cut, so fwknopd can no longer receive packet data.  There is a work
> around, which is to set ENABLE_VOLUNTARY_EXITS in the
> /etc/fwknop/fwknop.conf file.  This will instruct the fwknopd to exit
> every EXIT_INTERVAL minutes, and the knopwatchd will restart it.  This
> is equivalent to your current strategy of restarting fwknop once per
> day.
>
> I'll probably add a new feature to allow the status of the sniffing
> interface to be extracted from ifconfig, and fwknopd will be restarted
> if there is a change to this.  This would not be a perfect solution
> though, because if the interface is down'ed and up'ed quickly, the check
> might miss this, so the time-based strategy will continue to be
> supported as well.  Other suggestions are always welcome...
>
>> 2. The fwknop Windows UI
>>
>>    The UI creates a wrong timestamp even the clock is synchronized
>>    with ntp. The UI computes exact 1 hour+. I checked this on two
>>    Vista machines. A XP machine is not available for a test at the
>>    moment.
>
> This one I'm not sure about - Sean?  In the fwknop client, there is the
> --time-offset-plus command line argument, but that probably won't help
> with this issue.
>
> Thanks,
>
> --Mike
>
>
>> Can anyone comfirm this both issues?
>>
>> Mike
>>
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