R: [pptp-server] PPTP Connection over NAT

Francesco lists at colliniconsulting.it
Tue Apr 16 07:47:13 CDT 2002

With ADSL router it should works fine.

You can verify if the GRE protocol (protocol #47) is forwarded. Expecially,
try to look if there are some firewall restrictions; usually some
connectivity supplier put on their adsl routers some blocking filters.



  -----Messaggio originale-----
  Da: pptp-server-admin at lists.schulte.org
[mailto:pptp-server-admin at lists.schulte.org]Per conto di Igor Maciel
  Inviato: martedì 16 aprile 2002 14.30
  A: pptp-server at lists.schulte.org
  Oggetto: [pptp-server] PPTP Connection over NAT

  Hi all,
  I'd like to know if is possible to stablish a pptp connection over a nat.
  Let me explain:
  I have, at home, a simple ADSL modem (Ericsson HM220dp) and would like to
connect to our VPNServer (with a real address) in the office to access my
office network.
  This modem does simple NAT, so I have a fake address (right now it's - the modem has and when I try to connect to
my VPN Server, it stays Verifying Username and password, and nothing
happens. I'd like to know if there is some way to connect to my VPNServer
even when I have a fake address and are doing NAT to navigate. All works
fine with this modem (send/receive files in mIRC/ICQ/MSN - yes I have
Winblows @ home).
  Can anyone helps me?

  igor.maciel at mailbr.com.br

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