Multiple VPN Connections from Local Network to Remote Server

RouterOS General
1

Hello.
I would start this post apologizing about my awful english.
I got a problem regarding VPN.
I have a Router connected via wireless (WLAN + pppoe-out) to a WISP
This WISP provides me a Static public IP.
I have to open multiple VPN (Using Windows XP feature) to a remote server. I can already open successfully a VPN to the Remote server but if I try to open another VPN from another workstation under my local network, it stops at Username and Password Authentication.
I browsed a lot the forum, the wiki and the documentation, but i couldn’t find the solution to my issue.
Maybe is it a Masquerade problem? Should I exclude pptp packets from Masquerading?
What i do not need:

  • I don’t need a VPN Client on my RouterOS
  • I don’t need a pptp Between my RouterOS and my Remote Server
    What i need:
  • Ability to establish multiple VPN Connections between my local Workstations using Windows XP feature

Can you help me?
Do you need a supout.rif?

Thanks in advance.
Renato

2

make sure pptp and gre is enabled in /ip firewall service-port

3

Here it is from a export
RouterOS 3.3

/ip firewall service-port 
set ftp disabled=no ports=21 
set tftp disabled=no ports=69 
set irc disabled=no ports=6667 
set h323 disabled=no 
set sip disabled=no 
set pptp disabled=no ports=1723 
/ip service 
set telnet address=10.0.0.0/8 disabled=no port=23 
set ftp address=10.0.0.0/8 disabled=no port=21 
set www address=10.0.0.0/8 disabled=yes port=80 
set ssh address=10.0.0.0/8 disabled=no port=22 
set www-ssl address=10.0.0.0/8 certificate=none disabled=yes port=443 
set api address=0.0.0.0/0 disabled=yes port=8728 
set winbox address=0.0.0.0/0 disabled=no port=8291 
/ip firewall nat 
add action=masquerade chain=srcnat comment="NAT Masquerading" \
    connection-type=!pptp disabled=no
4

Why would you NOT masq it if it is PPTP.. I think that may be your issue.

5

Removed.. nothing changed…
It shouldn’t be a problem of MTU otherwise there wouldn’t be any VPN connection though.
I don’t really know what to do :confused: