PMTU discovery, was Re: rdp and Wi-Fi

[dario]

ann.rosengren at home.se wrote:

> Sorry, wrong adress!! Check it
>
>
> ----- Original Message ----- From: "Dario Rizzoli" 
> <dario.rizzoli at iceinformatics.com>
> To: <tinc at nl.linux.org>
> Sent: Friday, January 09, 2004 1:03 PM
> Subject: R: PMTU discovery, was Re: rdp and Wi-Fi
>
>
>> Pardon for my late.
>>
>> I have tryed to make an ls in a small directory via ssh and all works 
>> fine,
>> but when i make an ls in a large directory, like /etc , the 
>> connection drop!
>>
>> Now the problem is the "santis adsl router". I'll try to change MTU 
>> value
>> for
>> tinc interface and fri the wifi port.
>>
>> thanks dario
>>
>> -----Messaggio originale-----
>> Da: tinc-bounce at nl.linux.org [mailto:tinc-bounce at nl.linux.org]Per conto
>> di Guus Sliepen
>> Inviato: sabato 20 dicembre 2003 22.57
>> A: tinc
>> Cc: Dario Rizzoli
>> Oggetto: PMTU discovery, was Re: rdp and Wi-Fi
>>
>>
>> On Fri, Dec 19, 2003 at 01:37:20PM -0700, Jason wrote:
>>
>> > If it helps, I rdp through tinc all the time so it is most likely 
>> not a
>> compatibility
>> > issue between the two.  Does it start to connect but then kinda hangs
>> > displaying the login scrn?  It might be an mtu issue... where large
>> packets
>> > are getting dropped. A friend is having a similar weird issue with rdp
>> > through another (non-tinc) vpn and I suspect an mtu issue for him 
>> too..
>> Try
>> > setting the mtu of the network interface on the windows client 
>> (either the
>> > ethernet/wifi port if tinc runs on another box or the tinc tap 
>> interface
>> if
>> > tinc is running on your client) to something lower than 1500.. try 
>> 1300 or
>> > 1400.
>>
>> You could try the current CVS version, which contains code to do Path
>> MTU Discovery. Basically, it tries to figure out the effective MTU by
>> sending a few test packets, and after a while enforces the discovered
>> MTU on the VPN by sending ICMP messages which tell the hosts on the VPN
>> when to fragment their packets. To enable this, add "PMTUDiscovery =
>> yes" to the host config files.
>>
>> -- 
>> Met vriendelijke groet / with kind regards,
>>     Guus Sliepen <guus at sliepen.eu.org>
>>
>>
>> Tinc:         Discussion list about the tinc VPN daemon
>> Archive:      http://mail.nl.linux.org/lists/
>> Tinc site:    http://tinc.nl.linux.org/
>>
>>
>
>
> Tinc:         Discussion list about the tinc VPN daemon
> Archive:      http://mail.nl.linux.org/lists/
> Tinc site:    http://tinc.nl.linux.org/
>
Sorry,
    I have tried with the CVS version on Windows machine with :
   PMTUDiscovery = yes

    The server linux use the release 1.0.2.

    The problem still occur.

                Any one can help me?


Tinc:         Discussion list about the tinc VPN daemon
Archive:      http://mail.nl.linux.org/lists/
Tinc site:    http://tinc.nl.linux.org/