I have this network, and I need to configure NAT in order to give Internet access to computers in VLANs 11 and 12. When I test connectivity from computers to two public IP addresses of ISP, routers 1.1.1.1 and 2.2.2.1 display the Request timed out.
message. Packets go to the ISP1 router but never come back.
Here are my commands so far:
R1
R1(config)#interface serial 0/0/0
R1(config-if)#ip nat inside
R1(config-if)#exit
R1(config)#ip nat inside source static 1.1.1.2 1.1.1.1
R1(config)#ip route 0.0.0.0 0.0.0.0 1.1.1.1
R1(config)#
ISP1
ISP1(config)#interface serial 0/0/0
ISP1(config-if)#ip nat outside
ISP1(config-if)#exit
show ip nat translations
R1#show ip nat translations
Pro Inside global Inside local Outside local Outside global
--- 1.1.1.1 1.1.1.2 --- ---
R1 show ip route
R1#show 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, E - EGP
i - IS-IS, 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 1.1.1.1 to network 0.0.0.0
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 1.1.1.2/32 is directly connected, Serial0/0/0
2.0.0.0/30 is subnetted, 1 subnets
O 2.2.2.0/30 [110/66] via 10.1.11.2, 10:08:42, GigabitEthernet0/0
[110/66] via 10.1.12.2, 10:08:42, GigabitEthernet0/1
10.0.0.0/8 is variably subnetted, 6 subnets, 2 masks
C 10.1.11.0/24 is directly connected, GigabitEthernet0/0
L 10.1.11.1/32 is directly connected, GigabitEthernet0/0
C 10.1.12.0/24 is directly connected, GigabitEthernet0/1
L 10.1.12.1/32 is directly connected, GigabitEthernet0/1
O 10.2.21.0/24 [110/2] via 10.1.11.2, 10:08:42, GigabitEthernet0/0
O 10.2.22.0/24 [110/2] via 10.1.12.2, 10:08:42, GigabitEthernet0/1
S* 0.0.0.0/0 [1/0] via 1.1.1.1
ISP1 show ip route
ISP1#show 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, E - EGP
i - IS-IS, 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
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
2.0.0.0/30 is subnetted, 1 subnets
O 2.2.2.0/30 [110/130] via 1.1.1.2, 00:29:20, Serial0/0/0
10.0.0.0/24 is subnetted, 4 subnets
O 10.1.11.0/24 [110/65] via 1.1.1.2, 00:29:20, Serial0/0/0
O 10.1.12.0/24 [110/65] via 1.1.1.2, 00:29:20, Serial0/0/0
O 10.2.21.0/24 [110/66] via 1.1.1.2, 00:29:20, Serial0/0/0
O 10.2.22.0/24 [110/66] via 1.1.1.2, 00:29:20, Serial0/0/0
I'm kinda noob into networking, so I don't know what any other information I should provide.