EIGRP is Restricted to Stub Connections only on this Platform

If you are running a Cisco 3850 switch with the IP Base license and you want to run EIGRP you need to be aware of the following behaviour.

EIGRP is Restricted to Stub Connections only on this Platform

This means that Cisco have decided to cut down EIGRP within the IP Base license and limit its functionality to only run as a stub.

What does this mean?

Take the example below where you have connected another EIGRP device underneath your Cisco 3850 switch, you have peered them up with EIGRP and have a subnet 192.168.10.0/24 being advertised to the 3850.

The EIGRP config will default to the below.

router eigrp 1
eigrp stub connected summary

If you try and remove the eigrp stub connected summary line the platform will throw an error

EIGRP is Restricted to Stub Connections only on this Platform

So this means the 192.168.10.0/24 subnet will not be advertised upstream from the 3850

The Fix 

You can actually trick the switch into overriding this behaviour with a leak map

Simply apply this config to your switch and the routes will be advertised

ip prefix-list PREFIX_MATCH_ANY seq 5 permit 0.0.0.0/0 le 32

route-map PREFIX_MATCH_ANY permit 10
match ip address prefix-list PREFIX_MATCH_ANY

router eigrp 1
eigrp stub connected summary static redidstributed leak-map PREFIX_MATCH_ANY

I believe this also occurs on a 4507 platform but I have not tested that.