[pptp-server] PPTPD under NetBSD: Proxy Arp not working?

Darrin B. Jewell jewell at mit.edu
Tue Oct 12 06:30:25 CDT 1999


To correct my own error, gre is ip protocol 47.  Ip protocol 6 is tcp.
Your statement about the kernel and pptp both trying to intercept gre
packets is pretty much correct.

Thank you for the suggestions.  This problem is unique to NetBSD,
and I have been looking at ways for either pptp to use the gre
device or for kernel changes to allow pptp/pppd to get gre packets
even when there is a gre device compiled in but not turned on.

Since there is now a NetBSD pkg for pptp which I maintain, I will add
a note in the pkg documentation and at least a check at install time
for the gre device.

Thanks,
Darrin

"Simson L. Garfinkel" <simsong at vineyard.net> writes:
> Darrin,
> 
> Thank you for the email. To answer your questions:
> 
> 1. Yes, I have the gre pseudo-device compiled into the kernel. It's most strange
> that pptp does not work with this. I guess that both the kernel and the pptp are
> trying to intercept ip protocol 6 packets?
> 
>     => The documentation should probably mention this fact.
>     =>  and pptp should detect it and give a reasonable error.
> 
> I'll remove it and give it a try. Thank you for your help.




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