R1#
R1#sh ip route
Codes: L - local, 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, H - NHRP, l - LISP
       a - application route
       + - replicated route, % - next hop override, p - overrides from PfR

Gateway of last resort is 1.1.1.2 to network 0.0.0.0

O*E2  0.0.0.0/0 [110/1] via 1.1.1.2, 00:52:13, Serial0/0/0
      1.0.0.0/8 is variably subnetted, 2 subnets, 2 masks
C        1.1.1.0/30 is directly connected, Serial0/0/0
L        1.1.1.1/32 is directly connected, Serial0/0/0
      172.16.0.0/32 is subnetted, 3 subnets
O IA     172.16.60.1 [110/196] via 1.1.1.2, 00:51:27, Serial0/0/0
O IA     172.16.61.1 [110/196] via 1.1.1.2, 00:51:27, Serial0/0/0
O IA     172.16.62.1 [110/196] via 1.1.1.2, 00:51:27, Serial0/0/0
      192.168.10.0/24 is variably subnetted, 2 subnets, 2 masks
C        192.168.10.0/24 is directly connected, GigabitEthernet0/0.10
L        192.168.10.1/32 is directly connected, GigabitEthernet0/0.10
      192.168.20.0/24 is variably subnetted, 2 subnets, 2 masks
C        192.168.20.0/24 is directly connected, GigabitEthernet0/0.20
L        192.168.20.1/32 is directly connected, GigabitEthernet0/0.20
      192.168.30.0/24 is variably subnetted, 2 subnets, 2 masks
C        192.168.30.0/24 is directly connected, GigabitEthernet0/0.30
L        192.168.30.1/32 is directly connected, GigabitEthernet0/0.30
      192.168.99.0/24 is variably subnetted, 2 subnets, 2 masks
C        192.168.99.0/24 is directly connected, GigabitEthernet0/0.99
L        192.168.99.1/32 is directly connected, GigabitEthernet0/0.99
R1#