IP address binding for PPTP server.

RouterOS General
1

I’m using a MT 450 OS v4.5(?) connected to 2 ISP.
I have 2 public IP’s on different subnets for primary ISP and BackUp.
I’m running a dial-up VPN server on the MT.

However the PPTP server is being bound only to backup ISP’s IP.

So if I try to connect to backup ISP’s IP get a successful VPN connection. I’m able to browse into the network successfully and all. But if I try to do PPTP to primary ISP’s IP there is no connection.

Is there any way to bind the PPTP server to IP2 instead of IP1?

2

seems like you need to mark incoming connections according to their in-interfaces and then route back via correct interface

3

http://forum.mikrotik.com/t/2-wan-port-forwarding/39425/1

Same basic issue in that thread, with details on how to achieve what Chupaka posted.

4

Thanks for reply!

But the strangest thing is:
i removed whole ip configuration and disable Backup Interface.
As result only one outside int left and only 0.0.0.0/0 d=1 route left to outside.
Router has restarted, but I’m still unable to create pptp connection to my router.
Where is no fw filters enabled.

I have no ideas, why pptp does not work now.

5

Check that the ISP isn’t blocking traffic. Some ISPs don’t allow inbound services.