PPTP problems

Yesterday I have sent message like this one, but I can't see it on forum so I'm sending message once again.

I'm trying to establish PPTP connection with my ISP though eth1. I have setup PPTP client, but connection newer gets established. Actually, sometimes I see that I have got IP address on that PPTP connection, but after 10 seconds it disappears.

Can someone please send me step by step instructions how to setup PPTP connection to my ISP?

P.S.
When I'm establishing PPTP connection from my Linux computer, first my interface gets IP address from DHCP server, and then I establish PPTP connection. When I setup DHCP client on eth1 on RB, that interface never gets IP address.

Any help would be appreciated.

Best regards.

\

Tomislav