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Subject: Re: VNC over CIPE - speed problem
From: Nathan Neulinger <nneul,AT,umr,DOT,edu>
Date: Sat, 30 Mar 2002 15:05:46 +0100
In-reply-to: <1017305555.3ca2d9d3f1b5f@www.tac.cz>

If you switch to TightVNC, you'll get a huge performance boost,
independent of any cipe issues. For me, it made it perform equivalent in
speed to rdesktop/terminal-server. 

-- Nathan

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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>     CIPE info and list archive: 
><URL:http://sites.inka.de/~bigred/devel/cipe.html>
> 
> 
> 
> 
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-- 

------------------------------------------------------------
Nathan Neulinger                       EMail:  nneul,AT,umr,DOT,edu
University of Missouri - Rolla         Phone: (573) 341-4841
Computing Services                       Fax: (573) 341-4216





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