VPN

Hello everyone,

I have been using m0n0wall for about 3 months now for my senior project in school. In my project I have a mini test network that I have created virtually in VMWare. I have an XP client in my simulated internet that is trying to VPN into my LAN. I set up the VPN user and Password. I created new VPN connection through Windows XP and the client connects and passes authentication, but when I IPCONFIG on the client, the IP address is what I specified, but the Subnet Mask is 255.255.255.255. The client cannot ping any of the users in the LAN, but the users in the LAN can ping the client. Also the default gateway is not correct . I will insert some pictures of my situation. Any help as to how I can resolve this situation would be VERY appreciated. Also if I did not explain the problem well enough please let me know and I will clarify.

Thank you.

My Test Network
(http://img256.imageshack.us/img256/9379/monowalllayoutuu9.th.jpg)

My Problem
(http://img153.imageshack.us/img153/9148/30775906ay3.th.jpg)

Hello!

The client subnet-mask is ok, cause its a client to server connection.

It looks like an firewall problem. Try to add a firewall rule in m0n0wall like this (for testing):
allow on PPTP VPN interface: any prot and any port for any source and any destination.

Thanks for the help. I am pretty sure that I added a firewall rule to allow all, but I'm not positive. I will make sure that I do that and report my findings.

Thanks for the input! 

Ok, I just checked, and I do have 3 allow all firewall rules. I have one for each interface, the LAN, the WAN, and the PPTP interfaces allowing all traffic from any source or protocol and it is still give my problems. I know this is a very noobish question but could the issues I am having be cause by some sort or NAT problem?

OK, PPTP and LAN rules are ok. The WAN rule should be disabled - in other cases your firewall lets in any traffic, its a very high security risk. For PPTP VPN no WAN rule is needed.

Maybe NAT could be the problem. In my m0n0wall configurations there is no NAT rule activ, all is at default. Have you set any NAT rules?