variance or multiplier as cisco is calling the tech = lower metrics are better than higher ones > you multiply your primary route by 2 (10 here) and that will be the worse possible metric will load-balance with.
R1(config-router)#do show run | s eigrp 10
router eigrp 10
variance 10
network 4.4.4.0 0.0.0.255
network 79.112.0.0 0.0.0.255
network 79.112.1.0 0.0.0.255
no auto-summary
R1(config-router)#do show run int gi 5/0
Building configuration…
Current configuration : 110 bytes
!
interface GigabitEthernet5/0
bandwidth 1100000
ip address 79.112.0.1 255.255.255.0
negotiation auto
end
R1(config-router)#do show run int gi 4/0
Building configuration…
Current configuration : 109 bytes
!
interface GigabitEthernet4/0
bandwidth 425000
ip address 79.112.1.1 255.255.255.0
negotiation auto
end
R1(config-router)#do sh ip eigrp top
IP-EIGRP Topology Table for AS(10)/ID(79.112.1.1)
Codes: P - Passive, A - Active, U - Update, Q - Query, R - Reply,r - reply Status, s - sia Status
P 4.4.4.0/24, 1 successors, FD is 2816
via Connected, GigabitEthernet6/0
P 8.8.8.0/24, 1 successors, FD is 3328
via 79.112.0.2 (3328/3072), GigabitEthernet5/0
via 79.112.1.2 (6656/3072), GigabitEthernet4/0
P 86.105.2.0/24, 1 successors, FD is 3328
via 79.112.0.2 (3328/3072), GigabitEthernet5/0
P 86.105.1.0/24, 1 successors, FD is 3072
via 79.112.0.2 (3072/2816), GigabitEthernet5/0
P 79.112.1.0/24, 1 successors, FD is 6144
via Connected, GigabitEthernet4/0
P 79.112.0.0/24, 1 successors, FD is 2560
via Connected, GigabitEthernet5/0
P 79.0.0.0/8, 1 successors, FD is 3584
via 79.112.0.2 (3584/3328), GigabitEthernet5/0
P 86.0.0.0/8, 1 successors, FD is 6400
via 79.112.1.2 (6400/2816), GigabitEthernet4/0
R1(config-router)#do sh ip route
Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2
i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
ia - IS-IS inter area, * - candidate default, U - per-user static route
o - ODR, P - periodic downloaded static route
Gateway of last resort is not set
86.0.0.0/8 is variably subnetted, 3 subnets, 2 masks
D 86.105.2.0/24 [90/3328] via 79.112.0.2, 00:21:10, GigabitEthernet5/0
D 86.105.1.0/24 [90/3072] via 79.112.0.2, 00:21:10, GigabitEthernet5/0
D 86.0.0.0/8 [90/6400] via 79.112.1.2, 00:21:10, GigabitEthernet4/0
4.0.0.0/24 is subnetted, 1 subnets
C 4.4.4.0 is directly connected, GigabitEthernet6/0
8.0.0.0/24 is subnetted, 1 subnets
D 8.8.8.0 [90/6656] via 79.112.1.2, 00:21:10, GigabitEthernet4/0
[90/3328] via 79.112.0.2, 00:21:10, GigabitEthernet5/0
79.0.0.0/8 is variably subnetted, 3 subnets, 2 masks
C 79.112.1.0/24 is directly connected, GigabitEthernet4/0
C 79.112.0.0/24 is directly connected, GigabitEthernet5/0
D 79.0.0.0/8 [90/3584] via 79.112.0.2, 00:21:10, GigabitEthernet5/0