I want to setup router B on the network to give internet access on ether port 2 and as failover route OSPF to ether1 to router C, on the the atached picture is my configuration (dns + nat,etc) correct?

I want to setup router B on the network to give internet access on ether port 2 and as failover route OSPF to ether1 to router C, on the the atached picture is my configuration (dns + nat,etc) correct?
