IOS 15.x, ip default-network and EIGRP
It occured to me during various tests that trying to advertise a default route in EIGRP using ip default-network is not working any longer on IOS 15.x or IOS XE.
Long story short, same simple setup, two routers back to back, on 12.4 is working as designed, the neighbor routers are using that network to set the "Gateway of last resort" while on IOS 15.x or IOS XE (I have tested on a pair of 1841s and CSR1000v), although the Candidate Default Flag is set for that route, the neighbor routers are not using it to send traffic to destinations for which they do not have a match in RIB.
Is something that somebody else experienced? Is this a new "feature"?