5610SW IP VPN Phone and Draytek 2800 router

[raknas]

I am currently trialing this 5610SW IP VPN phone and i have succesfully converted the phone from IP to VPN Phone. I am trying to configure it to connect to a Draytek router. I have set up the IKE preshared key at both ends router and phone but i still cannot get it to authenticate. Has anyone out there set this up succesfully with this router.
Any help would be appreciated.

 

[raknas]

I can see on the draytek syslog vpn tab "responding to agresssive mode from xxx.xxx.xxx.xxx" and thats it. I just need pointing in the right direction that i have set up the vpn phone correctley and also on this type of router.
Any thoughts would be appreciated.