Re: Re-2: connection to vpn Server (pptp) behind iptables FW

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Le ven 12/03/2004 à 11:34, peter.gehle@xxxxxxxxx a écrit :  
> > Micro$oft has a 'technote' on this in their technet section on the
> > website. AFAIR you need to allow protocol 37 to be forwarded between the
> > two.
> I have added a rule that forwards the protocol 37, but it still not works?

PPTP relies on a slightly modified GRE tunnel, which protocol _47_, not
37.

cbr@anduril:~$ grep gre /etc/protocols
gre     47      GRE             # General Routing Encapsulation

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