pptpd debian sarge problem

Hi i installed sucessfully pptpd on debian sarge. I have
MPPE encryption. All looks okey. I started the daemon and
make vpn connection to my debian box from windows xp box.
I'm connected sucessfully and getting my ip address from
pptpd server, but my defaut gateway is 0.0.0.0 ( i don't
know why ) ?? What i doing to fix this?

LE APRIL 24, 2008 10:48:34 AM D3V1OUSJONY.ATLANTICA.US, VOUS
AVEZ éCRIT :
> HI I INSTALLED SUCESSFULLY PPTPD ON DEBIAN SARGE. I
HAVE MPPE ENCRYPTION.
> ALL LOOKS OKEY. I STARTED THE DAEMON AND MAKE VPN
CONNECTION TO MY DEBIAN
> BOX FROM WINDOWS XP BOX. I'M CONNECTED SUCESSFULLY AND
GETTING MY IP
> ADDRESS FROM PPTPD SERVER, BUT MY DEFAUT GATEWAY IS
0.0.0.0 ( I DON'T KNOW
> WHY ) ?? WHAT I DOING TO FIX THIS?

PLEASE ASK ON A DEBIAN SUPPORT RESSOURCE, SUCH AS
DEBIAN-USER. THIS MAILING 
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