Refer to the exhibit. How would you confirm on R1 that load balancing is actually occurring
on the default- network (0.0.0.0)? Select the best response.
R1#show 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
exteranl 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 212.50.185.126 to network0.0.0.0
D 212.50.167.0/24 (90/160000) via 212.50.185.82,00:05:55,
Ethernet1/0
212.50.166.0/24 is variably subnetted, 4 subnets, 2
masks
D 212.50.166.0/24 is a summary, 00:05:55, Null0
C 212.50.166.1/32 is directly connected, Loopback1
C 212.50.166.2/32 is directly connected, Loopback2
C 212.50.166.20/32 is directly connected, Loopback20
212.50.185.0/27 is subnetted, 3 subnets
C 212.50.185.64 is directly connected, Ethernet1/0
C 212.50.185.96 is directly connected, Ethernet0/0
C 212.50.185.32 is directly connected, Ethernet2/0
D*EX 0.0.0.0/0 (170/2174976) via 212.50.185.126, 00:05:55,
Ethernet0/0
(170/2174976) via 212.50.185.125, 00:05:55,
Ethernet0/0

A.
Use pingand the show ip routecommand to confirm the timers for each default
network resets to 0.

B.
Load balancing does not occur over default networks; the second route will only be used
for failover.

C.
Use an extended ping along with repeatedshow ip routecommands to confirm the
gateway of last resort address toggles back and forth.

D.
Use the traceroutecommand to an address that is not explicitly in the routing table.

Explanation:
The most simple method to test load balancing is touse the “traceroute” command. If load
balancing is working correctly, we will see different paths to reach the destination each time
we use that command.
Unknown address will be routed via the default-network 0.0.0.0 so we must use an address
that is not explicitly in the routing table.