What is Enhanced Interior Gateway Routing Protocol (EIGRP) Stub Routing

A stub router is one that is connected to no more than two neighbors and should never be a transit router.The Enhanced Interior Gateway Routing Protocol (EIGRP) Stub Routing provides

improves network stability,
reduces resource utilization,
and simplifies stub router configuration.
The stub router has one exit path from the routing domain and forwards all traffic to a central or distribution router.
eigrp stub [receive-onlyconnectedstaticsummary]
receive-only— This causes the router to not send any routes.
connected— The router advertises all connected routes to the single neighbor. No redistribution is necessary.
static— The router advertises all static routes to a single neighbor. The static routes still need to be redistributed into EIGRP to be advertised.
summary— The router advertises summary routes.

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