VPN hangs in file transfer

VPN hangs in file transfer
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Subject Author Date
VPN hangs in file transfer Heruan 04-13-2006
Posted by Heruan on April 13, 2006, 4:59 pm
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I can't transfer files through a network-to-network IPSec tunnel. I can
ping, ssh, list files etc... but whenever I try to transfer files (rsync
or ftp) the transfer hangs. Via Internet without pass through the tunnel
the transfer successes.
The tunnel is established between a Linksys WAG56G gateway over ADSL to
a OpenSWAN server on the other side.
I have problems also when via ssh I use a full-screen command (like
`less' or `vi'), the screen goes blank and I have to kill the session.

Any hint?
TIA,
H.

Pure Networks
Posted by Norvik on April 14, 2006, 3:46 am
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switch to ViPNet - it has a build-in file transfer
more info: www.vpnsolution.info


Posted by Simon on April 14, 2006, 4:10 am
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Heruan wrote:
> I can't transfer files through a network-to-network IPSec tunnel. I can
> ping, ssh, list files etc... but whenever I try to transfer files (rsync
> or ftp) the transfer hangs. Via Internet without pass through the tunnel
> the transfer successes.
> The tunnel is established between a Linksys WAG56G gateway over ADSL to
> a OpenSWAN server on the other side.
> I have problems also when via ssh I use a full-screen command (like
> `less' or `vi'), the screen goes blank and I have to kill the session.
>
> Any hint?
> TIA,
> H.
packet size issue ? try dropping the mtu each end

Posted by Heruan on April 14, 2006, 11:26 am
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Simon ha scritto:
> Heruan wrote:
>> I can't transfer files through a network-to-network IPSec tunnel. I can
>> ping, ssh, list files etc... but whenever I try to transfer files (rsync
>> or ftp) the transfer hangs. Via Internet without pass through the tunnel
>> the transfer successes.
>> The tunnel is established between a Linksys WAG56G gateway over ADSL to
>> a OpenSWAN server on the other side.
>> I have problems also when via ssh I use a full-screen command (like
>> `less' or `vi'), the screen goes blank and I have to kill the session.
>>
>> Any hint?
>> TIA,
>> H.
> packet size issue ? try dropping the mtu each end

How can I verify if it's a packet size issue? And how about mtu? It is
set to 1492 on each side of the tunnel.
Thank you!
H.

Posted by moncho on April 17, 2006, 12:53 pm
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> Simon ha scritto:
>> Heruan wrote:
>>> I can't transfer files through a network-to-network IPSec tunnel. I can
>>> ping, ssh, list files etc... but whenever I try to transfer files (rsync
>>> or ftp) the transfer hangs. Via Internet without pass through the tunnel
>>> the transfer successes.
>>> The tunnel is established between a Linksys WAG56G gateway over ADSL to
>>> a OpenSWAN server on the other side.
>>> I have problems also when via ssh I use a full-screen command (like
>>> `less' or `vi'), the screen goes blank and I have to kill the session.
>>>
>>> Any hint?
>>> TIA,
>>> H.
>> packet size issue ? try dropping the mtu each end
>
> How can I verify if it's a packet size issue? And how about mtu? It is
> set to 1492 on each side of the tunnel.
> Thank you!
> H.
Try dropping it further.

On one of my connections, I had to drop it to 1300 to get it to work
properly.

moncho



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