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Forums -> General questions -> VPN established, but connections don't work (MTU
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Stopar

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VPN established, but connections don't work (MTU 15-09-2008 10:30
Hi, first of all, thank you for a great alternative to hamachi, I needed to kick hamachi away because of the new licence.

I'm using it about week and everything worked fine till today, when something happened. I have had VPN established, connected remotely over VNC, but accidentally I got disconnected. Now not even a ping does return. The other side is online, VPN seems to be established, it shows correct IP, but MTU is reported 0.

Problably restarting the remote computer would fix that, but the computer is several kilometers form here :-/

Can that be a MTU bug?

p.s. Sending best regards to Croatia - been there on vacation this summer :-)
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kreso

Postings: 1534
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Re: VPN established, but connections don\'t work 15-09-2008 10:32
Stopar,

try to go offline/online once or twice, that should re-init your values on remote side too.

Kreso
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Stopar
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Re: VPN established, but connections don\'t work 15-09-2008 14:30
Hi Kreso, thanks for quick reply. Restarts on my side had no effect, but as soon as my girlfriend got home (I'm at work), she closed wippien and started again, the connection was established at the moment and working again. But why this happened? I hope it won't happen too often ;)

Now I have another problem, wippien is on a remote server (far from here) and stopped responding on friday, for no good reason, in this case no VPN is made and contact is displayed as offline. Strange is that, server itself and other applications are working fine (cron, httpd, proxy and other apps are responding fine, but I cannot use remote desktop, for security resons I have allowed it only over wippien, because it should encrypt communication:)

Similar problem I had on that same machine with hamachi (it's windows 2000 server). I had a script there, which killed hamachi once a day, because also hamachi stopped responding when it was running for too long (several days). Looks like same problem has wippien uhoh.gif . I don't know exactly, when I have installed it there, maybe on monday last week, so wippien uptime was about 4 days. I will have to make a trip there, and restart. I will try to measure, how long it will work from now ;-)
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kreso

Postings: 1534
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Re: VPN established, but connections don\'t work 15-09-2008 14:57
Stopar,

perhaps Wippien crashed? I've seen it happen, but I don't know why. I cannot, of course, guarantee that Wippien will work forever, but I do have computers which I don't restart for months and it works ok there.

So, if it happens again, is there some way you could tell me what happened on it? I usually try to allow VNC access to that machine from outside only on VNC port so I can try for myself to view screen and restart Wippien if needed. But I don't need this often.

Kreso
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Stopar
Anonymous
          
Re: VPN established, but connections don\'t work 17-09-2008 07:40
Hi, thanks for reply. When I was there to restart it, wippien was not on task list, so it either crashed or failed during update. Now I have (hopefully) all updates disabled.

I'm starting wippien from scheduller on event "when computer starts", because I can't start wippien as a service (AFAIK). This way I don't have to care which user is logged in and I don't have to have any user logged in at all. But there's no output on screen too...

Which logging should I turn on to debug this issue?
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kreso

Postings: 1534
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Re: VPN established, but connections don\'t work 17-09-2008 13:15
Hmm, I don't thikn you can run Wippien without valid user, if noone is logged in.

Kreso
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Stopar
Anonymous
          
Re: VPN established, but connections don\'t work 19-09-2008 10:40
Yes, I can :) As almost any other app. The application "thinks" that a valid user is logged in, because it is executed in kind of virtual user profile and the screen output goes nowhere. Scheduler is great if you want to run your applications "hidden". This way I'm running a whole lot of complex linux scripts (cyqwin) and applications without flooding the taskbar ;)

I think this is not the problem of scheduler, wippien works a day or so, but sooner or later it dies. It just exits and removes itself from process list. I will have to kill & restart wippien in intervals, I hope once a day will be enough :(

Wippien mini is good idea, but I'd rather see wippien daemon instead :) No window/trayicon/whatsoever ;) If you believe this is happening because no valid user is logged in, could you please add an option to run wippien as a service? ;-)

But otherwise, wippien is a great piece work. It does not work as neat as hamachi, but it is still a very good alternative. Thank you!
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