New VPN, Router or Firewall with OSPF enabled? Default is area 0.0.0.0.
Also note Linux, Unix, and Netware can run OSPF, so verify you have OSPF passive on segments that are not involved with connecting to other Networking Hardware under your control.
We use Static and Local redistribution enabled and OSPF disabled on all segments other than those connecting to other routers and on an Admin VLAN spanning clustered routers (8600's and 5600's).
TankII