m0n0wall Forum - Creating inside to outside PPTP connection from m0n0 WiFi Client

Hi all

I have an ALIX board where I have configured following Interfaces:

WAN (DHCP)
LAN 192.168.10.x/24 (static)
WiFi 192.168.250.0/24 (m0n0wall is the DHCP Server)

When I try to establish a PPTP connection from one of the WiFi Clients, which are connected to the m0n0wall WiFi Interface, then I get the following message in the Firewall logfile:

02:10:22.895426 ath0 @0:8 b 192.168.250.1 -> 192.168.250.159 PR icmp len 20 56 icmp unreach/host for 192.168.250.159 - (external.ip.address) PR gre len 20 (60) OUT

I can see in the logfile, that the pptp client makes a connection to the vpn server. I also see GRE message passing without any visible problem. Logfile looks lie this:

02:09:55.062013 ath0 @400:1 p 192.168.250.159,56698 -> (external.ip.address),1723 PR tcp len 20 64 -S K-S K-F IN
02:09:55.819737 ath0 @400:1 p 192.168.250.159 -> (external.ip.address) PR gre len 20 (60) K-S K-F IN

And after these two lines, the following line is repeated approx. 10 times and after that the vpn client brings an error message, that the pptp vpn connection to the server could not be established.

Establishing a pptp vpn connection from one of my computers on the LAN Interface to the same (external.ip.address) works without any problem.

Has anyone an idea, what I have missed in the configuration ? On the WiFi Interface I have only one rule, which allows everything from WiFi Interface to "outside". Same rule I have also on the LAN Interface, where it works like a charme.