> On 7/6/05, Jonas Claesson <jonas dot claesson at home dot se> wrote:
>>Struggeling with the PPTP server in Monowall.
>>Using 1.2b9 and the PPTP server works like a charm with clients that has
>>a public IP. With NATed clients it fails at authentication. Nothing in
>>the logs that helps me.
> Well, in a NATed environment, do you have control of your NAT box?
> Other than the outgoing connection on TCP/1723 for PPTP, your NAT must
> also permit GRE (protocol 47) routing. Either have "Enable VPN
> Routing" for the simple soho routers or enable GRE for in/out traffic.
> Note it's PROTOCOL 47, not tcp or udp port. If your NAT box doesn't
> pass that traffic, I've noticed symptoms that make it seem you've
> connected successfully to your m0n0 PPTP server, but no traffic gets
> passed, and nothing shows up in the logs.
>>Can anyone that has a working monowall with NATed clients please explain
>>what firmware they are using and if there are anything special needed
>>for this to work.
> I've gotten this to work behind a NAT of a NAT and such, some double
> NATed network. Nothing special needed except for the firewall rules
> on the NAT box.
The NATed clients can connect to other PPTP servers so I'm guessing the
issue isn't on the client side.
Are you using the latest 1.2b9 firmware?