[pptp-server] How to set iptables to doesn't masquerade the VPN traffic?

[Mikael Lönnroth]

I think the problem arises then you have 

- a private network 
- a VPN server inside that network, and
-  PPTP clients that are mapped to a third private address space inside the VPN server

Let's say the private network is 10.0.0.0/24 and the PPTP clients get addresses from a network 10.1.0.0/24.

The VPN server knows how to route packets from 10.1.0.10 (assigned to one VPN client) to 10.0.0.4 (some internal server), but the internal server (10.0.0.4) does not know how to route packets to 10.1.0.10, instead it routes them to the default gateway... 

Regards, 
Mikael Lönnroth
AdvanceVPN Oy
www.advancevpn.com

  ----- Original Message ----- 
  From: Bruno Negrão 
  To: pptp-server at lists.schulte.org 
  Sent: Wednesday, December 19, 2001 10:53 AM
  Subject: Re: [pptp-server] How to set iptables to doesn't masquerade the VPN traffic?


  Thank you in answering.

  Why wouldn't you want them Masq'd?
  In my understanding about VPNs, once you establish a vpn link between two remote private networks you'll deal with them as if those are normal private LAN's - thus I wouldn't like to mask one internal lan when connecting with the other lan, instead I want to enable routing between these lans (routing through the pptp link)

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