Cisco router as a PPTP client

Cisco router as a PPTP client, configured it without encryption to another VPN server.

vpdn enable
!
vpdn-group 1
request-dialin
protocol pptp
rotary-group 0
initiate-to ip VPN_SERVER

interface Dialer0
ip address negotiated
ip pim dense-mode
encapsulation ppp
dialer in-band
dialer idle-timeout 0
dialer string 222
dialer vpdn
dialer-group 1
no cdp enable
ppp pfc local request
ppp pfc remote apply
ppp encrypt mppe auto
ppp chap hostname USERNAME
ppp chap password PASSWORD

dialer-list 1 protocol ip permit
ip multicast-routing
no ip gratuitous-arps