There would not be any routing loop and no need for any prefix/distribute lists
Here you will be receiving routes from both the routers and the area0 will choose the path based on best metric. If the cost of the links from R4 and R1 are same, your router will loadbalance the traffic via both links
Loadbalancing doesn't really mean that the traffic will go via one and return via another. By default the cisco routers run CEF which loadbalance on a per-destination basis. So you will find that a particular source-destination pair always take one path.
If you want only router to act as primary for all the traffic, you can manipulte the cost of one of the links of the routers between area0 and area1
We are pleased to announce availability of Beta software for 16.6.3.
16.6.3 will be the second rebuild on the 16.6 release train targeted
towards Catalyst 9500/9400/9300/3850/3650 switching platforms. We are
looking for early feedback from customers befor...
Introduction Featured Speakers Luis Espejel is the Telecommunications
Manager of IENova, an Oil & Gas company. Currently he works with Cisco
IOS® and Cisco IOS XE platforms, and NX to some extent. He has also
worked as a Senior Engineer with the Routing P...
In this session you can learn more about Layer 3 multicast and the best
practices to identify possible threats and take security measures. It
provides an overview of basic multicast, the best security practices for
use of this technology, and recommendati...