If you want OMPROUTE to ignore the specified interface and all other undefined interfaces, then add the value GLOBAL_OPTIONS ignore_undefined_interfaces=yes to the OMPROUTE configuration file. If you want the specified interface to be used by the OSPF or RIP protocol or both, modify the OMPROUTE configuration file to add an OSPF_Interface, RIP_Interface, IPv6_OSPF_Interface or IPv6_RIP_Interface configuration statement. Otherwise, add an Interface configuration statement (if the interface is an IPv4 interface and the class mask should not be used in calculating the network route to be added to the route table) or an IPv6_Interface configuration statement (if the interface is an IPv6 interface and prefix routes need to be added to the route table for the interface). If you are using a wild card value or an explicit interface definition, see the parsing rules described in method of assigning interface definitions to stack interfaces (wildcard and explicit) in z/OS Communications Server: IP Configuration Guide.