[pptp-server] Forwarding GRE

[Philip Van Baren]

Does this help?

7.3.5. Get "pptpd[24120]: GRE: read(fd=5,buffer=804d9c0,len=8196) from
	     PTY failed: status = -1 error = Input/output error"
	    "pptpd[24120]: CTRL: PTY read or GRE write failed (pty,gre)=(5,6)"
	    "pptpd[24120]: CTRL: Client 12.72.37.31 control connection finished"
	errors in your log file when the pptpd program is running on a machine
	behind a masq'ed firewall.

	Solution:  Apply the ip_masq_vpn.patch patch file to kernel.
	    Also, look at Linux VPN Masquerade HOWTO: Patching and configuring
	    kernel for VPN Masquerade support for details.

> -----Original Message-----
> From: pptp-server-admin at lists.schulte.org
> [mailto:pptp-server-admin at lists.schulte.org]On Behalf Of Al Ludwig
> Sent: Wednesday, October 18, 2000 5:28 PM
> To: pptp-server at lists.schulte.org
> Subject: [pptp-server] Forwarding GRE
>
>
> Hello,
>
> It looks like my firewall will not forward GRE through to my PPTP Server.
> If this turns out to be the case, does anyone know of any documents on how
> to create a tunnel back to the client via PPTP?  The Firewall is
> letting GRE
> out, and I've seen it mentioned before, but I'm unable to find anything
> worthwhile on it.  Any ideas would be greatly appreciated.
>
> Thanks,
>
> -AL
>
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