I have a situation where I want to filter EIGRP routes being sent to a down stream switch (Layer 3). In this senario we have a 6513 sending routes to a down stream 3560E configured as a EIGRP stub-connected. My question is what is the preferred method to filter the EIGRP routes and only send a EIGRP default route to the downstream 3560E? Is it best to use a distribute list or the ip summary-address command? I know they pretty much do about the same thing. I have heard that a distribute-list is less risky since it does not place a default route to null0 in EIGRP topology route table.