root@OpenWrt:~# vtysh
Hello, this is FRRouting (version 8.5.1).
Copyright 1996-2005 Kunihiro Ishiguro, et al.
OpenWrt# configure terminal
OpenWrt(config)# router ospf 1
% OSPF is not running in instance mode
OpenWrt(config)#
What to do when it says "% OSPF is not running in instance mode" ?