In an OMP feature template applied to WAN Edge routers, which setting prevents LAN-learned routes from being redistributed back into OMP?

The "configure Overlay AS Number" setting is used to prevent routing loops and control route advertisement. When a router has an Overlay AS Number configured, it will not advertise routes learned from OMP back into OMP if those routes originated from an AS that matches its own Overlay AS Number. This is a loop prevention mechanism, similar to how BGP uses AS-Path. Incorrect options: "configure ECMP limit" controls the maximum number of equal-cost paths installed in the forwarding table. "configure Send Backup Paths" allows the advertisement of backup paths for prefixes. "configure Number of Paths Advertised per Prefix" determines how many paths for a given prefix are advertised to other OMP speakers.