Re: Problems Logon on Ras Server

Thank you for answer Bill,

my Router Zyxel 652 , is also a firewall.
In the the protocols list that i enable to pass trought firewall check ,
this router includes
an item called PPTP_TUNNEL GRE:0.

So i thought that it would be enough to work.

If it isn't so , what am i to do to make ras work ?

Thank You
Roberto.



"Bill Grant" <not.available@online> ha scritto nel messaggio
news:uG4VEA9OFHA.2384@xxxxxxxxxxxxxxxxxxxxxxx
> Roberto Fabbri wrote:
> > Hi
> >
> > i have a win 2k SP4 server with ras configured as vpn server.
> > This server is connected via DSL to the internet and has
> > a private address associated with nat on a public ip address.
> > The nat is done on the router.
> >
> > This server correctly responds to ping from outside the lan.
> >
> > On my firewall ,I have open ports for PPTP and GRE.
> >
> > The user id I use to try logon is enabled for dial in connection.
> >
> > When i try to connect a client using a Dial up or another dsl line
> > i get an error (721) after trying authentication.
> >
> > Is there something else that i must check for ?
> >
> > Thank you
> > Roberto
>
> Certainly sounds like a GRE issue. GRE is not a port. It is an IP
> protocol (protocol 47). The data is encrypted then encapsulated with a
> modified GRE header. If GRE is blocked (by the DSL NAT device or anything
> else in the path), no data is transferred across the link and it closes.
>
>


.

Relevant Pages

  • RE: VPN to SBS through Comcast router
    ... The only thing I can find is to open TCP/UDP port 47 ... "What's GRE?". ... >> workaround for the hardware router which is not supporting PPTP connection. ... GRE is a client protocol of IP ...
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