PPTP VPN Problem

Greetings!

I have been using MikroTik hardware for about 2 years now and absolutely love the cost effectiveness of RouterOS. Being a long time Cisco guy I haven’t found anything the MT isn’t capable of, just things I don’t know how to do yet. I’ve been trying to swap out a router at a client location but the one thing keeping me from doing so is the VPN. I have tried (unsuccessfully) numerous times to set it up but I keep running into one problem or another. Here is the setup I’m using: (Note: this has been pieced together from numerous guides, substituting one where something doesn’t work on another.)

Add Create IP Pool, to provide dynamic IP address for the VPN client connected.

ip pool add name=vpn-pool ranges=10.10.10.2-10.10.10.5

Create PPP Profile

ppp profile add name=vpn-profile local-address=10.10.10.1 remote-address=vpn-pool

Create PPP Secret

ppp secret add name=user-vpn01 password=user-password01 service=pptp profile=vpn-profile

Enable PPTP Server

interface pptp-server server set enable=yes

Then in the firewall above the drop two rules, accepting GRE and 1723.

The VPN Establishes but then drops a little while later. My client is Ubuntu 12.04 and after researching the problem I found that issuing a command manually setting the rate and then the connection established and stayed connected. I still wasn’t able to talk to the local network, I found a post that said to enable proxy-arp, but as soon as I did I could no longer keep a connection established.


Any ideas?

Hello,

just a guess but have you tried adjusting the MTU settings in PPTP server?

I know I have changed it from default to 1440.

Could be worth changing.

Regards, Dave.