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 From:  "Braden McGrath" <braden at mcmail dot homeip dot net>
 To:  <m0n0wall at lists dot m0n0 dot ch>
 Subject:  RE: [m0n0wall] 1.2b6 traffic shaper PPTP breakage
 Date:  Sat, 5 Mar 2005 19:12:48 -0500
> > 2 - The real problem is with traffic shaper enabled, and 
> any traffic 
> > shaping rules inbound on WAN matching * proto, * src and * dst, 
> > m0n0wall no longer answers on port 1723 at all.
> > 
> > To replicate:  Enable magic shaper with default rules, enable PPTP, 
> > try to telnet to 1723 on WAN.  Won't work.  PPTP will work from LAN.
> > Disable the rules "m_Small Pkt Download" and "m_Catch-All Download"
> > (only two that match previous criteria) and it will 
> immediately work 
> > again.
> > 

Don't know if this is helpful or not, but if the GUI is configured to
"Forward all PPTP to alternate IP address X," it works fine from the
WAN, even with the above traffic shaper rules enabled.  It seems to only
happen when trying to use the built-in PPTP server, not just forwarding
to a different one.