Abstract: Systems, methods and computer products for a TCP/IP stack to notify an application of a state change made to all routes over a single IPV4 interface. Exemplary embodiments include a including creating a master socket to the TCP/IP stack, obtaining all IPV4 active and inactive home interfaces from the TCP/IP stack, building and maintaining a home interface hash table of the obtained home interfaces, obtaining all the IPV4 host and network routes from the TCP/IP stack, building and maintaining a route hash table of obtained host and network routes, determining that a route is active when the route's home interface is active, receiving a notification via the master socket from the TCP/IP stack in response to a state change occurring in a home interface, and changing a respective state entry of the home interface in the home interface hash table.