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Subject: Re: VNC over CIPE - speed problem
From: Mark Cooke <mpc,AT,star,DOT,sr,DOT,bham,DOT,ac,DOT,uk>
Date: Fri, 29 Mar 2002 12:58:31 +0100
In-reply-to: <1017400731.331.6.camel@beech>

Conversely, I've been using a slight variation - I ssh with maximum 
compression to the remote end of the CIPE tunnel, and VNC at the 
remote end with pretty acceptable speeds over my 512/128 cable modem
at both 32 and 8 bit depths.

Mark

On 29 Mar 2002, Al Grimstad wrote:

> I've found VNC over CIPE to be slow, using a depth of 32. Backing off to
> 8 makes the speed acceptable. This is using the base VNC of AT&T, not a
> derivative. Even with a depth of 32 nothing "breaks." -- al
> 
> On Thu, 2002-03-28 at 06:09, Peter van den Heuvel wrote:
>     Yo!
>     
>     > I'm currently playing with CIPE (I get it to work without PKCIPE). 
>I'm using it
>     > for tunneling VNC connections between two firewalls and VNC speed 
>seems to be a
>     > problem.
>     > 
>     > Is somebody here using VNC over CIPE tunnel? Vncviewer is using 
>192kbit link,
>     > vncserver is on 128kbit link (but both links aren't used for VNC/CIPE
>     > exclusively, there is some WWW and similar traffic). I'm using 
>tightvnc-3.3. The
>     > screen transfer usually breaks in a half.
>     > 
>     > I remember that PPP over SSH was much much faster, SSH only 
>forwarding was also
>     > faster. I Googled through the archives of cipe-l but there was no 
>problem
>     > reported about VNC speed.
>     I use Cipe extensively for things like that, though I use xterms and
>     rlogins mainly. Even on 56K connections and over long distances it's no
>     problem. It should be faster and more robust then ssh.
>     
>     You did not happen to deny ICMP on some of those firewall? Cauze that
>     will break things. Think about must fragment messages and the like.
>     
>     CIAO
>     
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>     
>     
> 
> 
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-- 
+-------------------------------------------------------------------------+
Mark Cooke                  The views expressed above are mine and are not
Systems Programmer          necessarily representative of university policy
University Of Birmingham    URL: http://www.sr.bham.ac.uk/~mpc/
+-------------------------------------------------------------------------+





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