VNC disconnects

[Gupta, Pankaj G]

This stuff was discussed long back..& today I found the reason behind my
VNC getting disconnected so thought of posting this to the group.

Reason was administrators has kept a IDP ( security appliance from
juniper networks ) box and our network was getting routed through that.
This security device does not allow non-standard ports and used to drop
VNC  packets after 2-3 minutes. Now I asked admin team to bypass this
and after that VNC works perfect.

Thanks for your reply!

-Pankaj
"Successful software always gets changed..."

-----Original Message-----
From: evets dranem [mailto:edranem "at" dranem.org] 
Sent: Tuesday, June 05, 2007 6:26 PM
To: VNC
Subject: Re: VNC disconnects

Gupta, Pankaj G wrote:

>Hi,
>
>I do work from home and using a VPN connection. When i connect my VNC 
>it hangs/disconnects after sometime, my VPN connection remain as it is 
>and that is not disconnected.
>I am not sure if system administrators has done anything or i need to 
>something from my side. This used to work a week before.
>
>Where can be the problem ? and What possibly has been changed ?
>
>Thanks,
>-Pankaj
>
>
>"Successful software always gets changed..."
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>  
>
you probably need to reduce your MTU down to something like 1300 vpn
reduces the network data  per packet because of the larger header to
transmit the vpn info in the header

ethernet 1500
pppoe 1492
wireless

ping with different size packets until you find the fragment size which
indicates mtu size 

hope it makes sense
google is your friend for this subject

google :searchterms: mtu fragment ping ethernet vpn  [mix n match to
suit]

you may want to rate limit your mouse also [vnc setting]
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