Question : EIGRP load balancing using non-parallel T1s

             LAN 10.100.0.0/16
               L0 192.168.254.1/32
                       A
                       |\
                       | \10.105.1.0/30
                       |  \
10.105.1.8/30 |   C LAN 10.205.0.0/16  L0 192.168.254.3/32
                       |  /
                       | /10.105.1.4/30
                       |/
                       B
         LAN 10.110.0.0/16
         L0 192.168.254.2/32

All three links between routers are point-to-point T1s.

EIGRP is properly configured on all routers.

Is there a way to load balance traffic between router A's LAN and router B's LAN by utilizing the T1s going to router C and the T1 between router A and B?

(not sure if it is relevent, but I added the loopback interface for each router in the above diagram, along with its LAN subnet)

Answer : EIGRP load balancing using non-parallel T1s

The problem is that in order for a higher cost route to be eligible for unequal cost load balancing, it must be a feasible successor.

To be a feasible successor, the route must have an advertised distance which is lower than the feasible distance of the best route.

(FD/AD)
using Router A (2172416/28160)
using Router C (2684416/2172416)

Notice how the advertised distance of the Router C path is not lower (it's the same) than the feasible distance of the Router A path?

That is what's keeping it from working.

You'll either have to reduce the delay of the Router C path, make bandwidth more of a factor (raise K1 to a "2"), or just stop considering delay in the calculation.