A quick question (I think). This is a 10.04 LTS server running openvpn 2.1.0, dhcp3-server, named, etc. No apparent problems with the vpn.

In man dhcpd.conf it says that a subnet should be declared even if no addresses will be allocated. Openvpn allocates its own addresses on a default subnet: is it necessary to declare this subnet in dhcpd.conf?