In the process of configuring our Vigor 3900, and struggling with the VPNs a bit.

If I set the 3900 as the DHCP device, I can connect with the L2TP over IPSec connection without problem. However, we already have a DHCP server withing the network that I wish to continue using.

If I switch off the 3900 (LAN1) DHCP property and enable the DHCP Routing stuff, it doesn't appear to be assigning an address to incoming connections.

Any ideas how to get round this issue????