PPtP protocol support

modulename: nf_conntrack_pptp.ko

configname: CONFIG_NF_CONNTRACK_PPTP

Linux Kernel Configuration
└─>Networking
└─>Networking options
└─>Network packet filtering framework (Netfilter)
└─>Core Netfilter Configuration
└─>PPtP protocol support
In linux kernel since version 2.6.20 (release Date: 2007-02-04)  
This module adds support for PPTP (Point to Point Tunnelling
Protocol, RFC2637) connection tracking and NAT.

If you are running PPTP sessions over a stateful firewall or NAT
box, you may want to enable this feature.

Please note that not all PPTP modes of operation are supported yet.
Specifically these limitations exist:
- Blindly assumes that control connections are always established
in PNS->PAC direction. This is a violation of RFC2637.
- Only supports a single call within each session

To compile it as a module, choose M here. If unsure, say N.

source code: