[pptp-server] pptp and ADSL

[Joe Ward]

pptp and ADSLI used to get this error all the time with my cable modem.
I set the following in my options.pptp file and that removed almost all
instances of the problem

mtu 750
mru 750

Also running the latest version of poptop will alllow for packet reordering.
this will further improve the problems.

-Joe Ward


   -----Original Message-----
  From: pptp-server-admin at lists.schulte.org
[mailto:pptp-server-admin at lists.schulte.org]On Behalf Of Scott Stone
  Sent: Tuesday, May 22, 2001 1:40 PM
  To: 'Krebs Peter'; pptp-server at lists.schulte.org
  Subject: RE: [pptp-server] pptp and ADSL


  sounds like this isn't a case of them blocking the VPN ports so much as it
is a case of a poor quality ISP that doesn't want to be bothered with
concepts that are over their heads :)  if you're getting the connection
established at all, they're not blocking VPN traffic, at least not any that
you need...

  -----------------------------------------------------
  Scott M. Stone <sstone at taos.com>
  Senior Technical Consultant - UNIX and Networking
  Taos, the Sysadmin Company - Santa Clara, CA

    -----Original Message-----
    From: Krebs Peter [mailto:pkrebs at lvu.at]
    Sent: Tuesday, May 22, 2001 10:06 AM
    To: pptp-server at lists.schulte.org
    Subject: [pptp-server] pptp and ADSL


    Hi,

    has any one experiences with pptp and ADSL?

    We use linux pptp and your client uses win2k with a ADSL connection to
his ISP.

    It seams to work but sometimes i get an error:

    GRE: Discarding out of order packet

    As we use the tunnel to connect to a AS/400 i get trubles if connection
between AS/400 and
    client dies for a (short) time (1 to 2 sec). With M$ products like
Outlook connection to a Exchange
    Server the tunnel works fine.

    Can the reason for this be that ADSL uses tunneling.
    The ADSL provider just say we do not support VPN.



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