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Subject: Re: Stable NT based solution
From: Damion Wilson <dwilson,AT,ibl,DOT,bm>
Date: Fri, 5 Jul 2002 17:47:26 +0200
In-reply-to: <>

Alright guys, give me a while to try and recreate the problem. Can anyone say 
which version this affliction appeared in ?

Juergen, there is nearly a one to one correlation between encrypted UDP 
packets on the LAN and delivered plaintext packets on the VPN interface.
Can you confirm whether there are more packets arriving on the LAN (on the 
CIPE port) than are getting decrypted and delivered on the CIPE adapter ?

And which OS is getting the slowdown ?


On Friday 05 July 2002 08:43 am, Juergen K. Zick wrote:
> Hi everybody,
> I have exactly the same problems as  "Kim, Sang Dong"
> <SDoKim,AT,fciconnect,DOT,com> was explaining.
> More detailed in my case, it`s a NT4.0 on one side and W2K with a
> NAT/DSL-router on the other side. For testing I used a transparent
> connection (just NAT, no encrypting) and a CIPE connection (again NAT and
> CIPE encypted), PING turnaround times 80ms w/o CIPE, 130ms w CIPE).
> The CIPE connection was a little bit slower, but sometimes it just stops
> and only restarting the service on one bring the tunnel up again ...
> When connecting a drive via Micro$oft's DRIVE SHARING it looks like the
> tunnel is fast only while I send/copy much data across it. As soon as I
> stop browsing around on that drive oer copying data the CIPE speed goes
> down at once, sometimes stopping completely ...
> It was that way in all of the last WIN32-versions ...
> I was watching the packet between the NAT/DSL-Router and the W2K machine as
> well, it looks like the w2k machine does not get all packets or does not
> answer ... I have no idea, what might be the cause ... and it prevents me
> from using CIPE regulary ...
> best regards,
> Jürgen Zick
> >Hi, I'm a user of NT based CIPE.
> >
> >I'm using the NT based CIPE
> >Windows NT 4.0 and Windows 2K,
> >Both of CIPE working but, it is sometime stop the service.
> >and when we start and stop the service..
> >it is cold rebooting... one side only..
> >I think that NT version still has small packet problem.
> >and i am using a sygate as a NAT.
> >when i use some of encripted site.. it is stop working..
> >Just it is my experiance.
> >I'm waiting to be solved it.

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