Oh how I love these questions (Boson, this time).
I remembered from the CISCO Press horrific question to check on connectivity problems if there is an overlap in the VLSM internetwork, and there is, but only in the router's routing table.
A LAN host has an IP of 200.120.45.180 /27
The router LAN int has an IP of 200.120.45.161 /27
So that network is 200.120.45.160-191
Ping does not work between the host and the LAN int of the router.
The router has a EIGRP route to 200.120.45.176 /28 out of a Serial interface, because of an overlapping 176-191 network. Why does it put this route in because it is already 'summarised' with the 160 /27 route that is directly connected?
So I guess my question is why is the router preferencing this route when EIGRP is AD 90 and directly connected is 0? Is it because the more specific one is matched? Damn, I thought the larger route is preferred!
EDIT: Here is the answer to this part of the lab:
A ping to a directly connected host could fail if an erroneous route in the routing table diverts the traffic to an invalid destination, where the traffic is ultimately dropped.
I got this correct, but I don't understand why, I only got it correct because that is the only thing I could logically come to, but that totally isn't satisfying at all.
