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Re: Help with pptp

On 28 Oct 2004, Raffaele D'Elia wrote:
> -----Original Message-----
> From: Daniel Pittman <daniel@rimspace.net>
> To: debian-firewall@lists.debian.org
> Date: Wed, 27 Oct 2004 12:10:24 +1000
> Subject: Re: Help with pptp
>> On 27 Oct 2004, Matthew Palmer wrote:
>>> On Tue, Oct 26, 2004 at 07:41:01PM +0200, Raffaele D'Elia wrote:
>>>> I'm looking for help about a pptp link between a windows xp (client)
>> and a
>>>> woody (server).
>>>> The tunnel works well for some hours but, often, goes down.
>>>> In the pppd log I've found an "LCP Term Req id 0x08 <garbage>"
>> followed by
>>>> "LCP Terminated by peer (<the_same_garbage>)".
>>> I'm no PPP log message translation guru, but that LCP Term Req looks
>> to me
>>> like the remote end saying "I want to close the link now", which the
>> local
>>> pppd is simply honouring.
>> You are quite correct in your reading of that request/response
>> sequence.
> I agree too.
>>> Does the XP VPN client have any sort of "drop connection after this
>>> long" setting, either as an idle timeout or absolute connectionl
>>> length thing?
>> This is certainly a client-side issue.
> I'm not sure... May be the client wants to drop the connection. May be
> the server is misunderstanding the message. Do you agree?

No, I doubt it. The 'LCP Term Req' is perfectly plain and simple - the
client, through the link control protocol, requests link termination.

Perhaps the client is getting into a confused state and closing the
connection in error, or the timeout changes you made simply don't work.

It is /remotely/ possible that you have discovered a PPPd bug which
reads some packet incorrectly.  If you really suspect this, upgrade to
the latest PPPd release on the server.


The past is a foreign country: they do things differently there.
        -- L P Hartley, _The Go-Between_

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