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Can't acces internet

logianto
Level 1
Level 1

Good afternoon, I have a cisco 3750 and a router 2951. 6 VLANs are configured on 3750. I do not have Internet pings on 3750, even though I can ping a router. I need HELP i undestend i make somthing silly but i cant fix that

CISCO 2950: 

interface GigabitEthernet0/0
description INSIDE TO 3750
ip address 192.168.98.1 255.255.255.0
ip nat inside
ip virtual-reassembly in
duplex auto
speed auto
!
interface GigabitEthernet0/1
description OUTSIDE
ip address 91.24.87.67 255.255.255.0
ip nat outside
ip virtual-reassembly in
duplex auto
speed auto

 

ip route 0.0.0.0 0.0.0.0 91.24.87.254

 

router eigrp 2
network 192.168.1.0
network 192.168.98.0
network 192.168.99.0
network 192.168.100.0
network 192.168.101.0
network 192.168.102.0
network 192.168.103.0
network 192.168.104.0
network 192.168.105.0
redistribute static

 

output 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 91.24.87.254 to network 0.0.0.0

S* 0.0.0.0/0 [1/0] via 91.24.87.254
91.0.0.0/8 is variably subnetted, 2 subnets, 2 masks
C 91.230.154.0/24 is directly connected, GigabitEthernet0/1
L 91.230.154.12/32 is directly connected, GigabitEthernet0/1
D 192.168.1.0/24 [90/3072] via 192.168.98.2, 00:32:49, GigabitEthernet0/0
192.168.98.0/24 is variably subnetted, 2 subnets, 2 masks
C 192.168.98.0/24 is directly connected, GigabitEthernet0/0
L 192.168.98.1/32 is directly connected, GigabitEthernet0/0
D 192.168.99.0/24 [90/3072] via 192.168.98.2, 00:32:49, GigabitEthernet0/0
D 192.168.100.0/24
[90/3072] via 192.168.98.2, 00:32:49, GigabitEthernet0/0
D 192.168.101.0/24
[90/3072] via 192.168.98.2, 00:32:49, GigabitEthernet0/0
D 192.168.102.0/24
[90/3072] via 192.168.98.2, 00:32:49, GigabitEthernet0/0
D 192.168.103.0/24
[90/3072] via 192.168.98.2, 00:32:49, GigabitEthernet0/0
D 192.168.104.0/24
[90/3072] via 192.168.98.2, 00:32:49, GigabitEthernet0/0
D 192.168.105.0/24
[90/3072] via 192.168.98.2, 00:32:49, GigabitEthernet0/0

 

CISCO 3750 

interface GigabitEthernet1/0/2
description TO ROUTER
no switchport
ip address 192.168.98.2 255.255.255.0

 

router eigrp 2
network 192.168.1.0
network 192.168.98.0
network 192.168.99.0
network 192.168.100.0
network 192.168.101.0
network 192.168.102.0
network 192.168.103.0
network 192.168.104.0
network 192.168.105.0
redistribute static

 

output 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

Gateway of last resort is 192.168.98.1 to network 0.0.0.0

D*EX 0.0.0.0/0 [170/28416] via 192.168.98.1, 00:32:12, GigabitEthernet1/0/2
192.168.1.0/24 is variably subnetted, 2 subnets, 2 masks
C 192.168.1.0/24 is directly connected, Vlan1
L 192.168.1.254/32 is directly connected, Vlan1
192.168.98.0/24 is variably subnetted, 2 subnets, 2 masks
C 192.168.98.0/24 is directly connected, GigabitEthernet1/0/2
L 192.168.98.2/32 is directly connected, GigabitEthernet1/0/2
192.168.99.0/24 is variably subnetted, 2 subnets, 2 masks
C 192.168.99.0/24 is directly connected, Vlan99
L 192.168.99.254/32 is directly connected, Vlan99
192.168.100.0/24 is variably subnetted, 2 subnets, 2 masks
C 192.168.100.0/24 is directly connected, Vlan100
L 192.168.100.254/32 is directly connected, Vlan100
192.168.101.0/24 is variably subnetted, 2 subnets, 2 masks
C 192.168.101.0/24 is directly connected, Vlan101
L 192.168.101.254/32 is directly connected, Vlan101
192.168.102.0/24 is variably subnetted, 2 subnets, 2 masks
C 192.168.102.0/24 is directly connected, Vlan102
L 192.168.102.254/32 is directly connected, Vlan102
192.168.103.0/24 is variably subnetted, 2 subnets, 2 masks
C 192.168.103.0/24 is directly connected, Vlan103
L 192.168.103.254/32 is directly connected, Vlan103
192.168.104.0/24 is variably subnetted, 2 subnets, 2 masks
C 192.168.104.0/24 is directly connected, Vlan104
L 192.168.104.254/32 is directly connected, Vlan104
192.168.105.0/24 is variably subnetted, 2 subnets, 2 masks
C 192.168.105.0/24 is directly connected, Vlan105
L 192.168.105.254/32 is directly connected, Vlan105

 

 

Ping 3750 to 2951

 

ping 91.24.87.67
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 91.24.87.67, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 1/27/117 ms

 

ping 91.24.87.254
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 91.24.87.254, timeout is 2 seconds:
.....
Success rate is 0 percent (0/5)

 

1 Accepted Solution

Accepted Solutions

Hello,

 

do you actually have the two lines below in the configuration of your 2951 router ?

 

ip nat inside source list 1 interface GigbaitEthernet0/1 overload
!
access-list 1 permit 192.168.0.0 0.0.255.255

View solution in original post

4 Replies 4

Check if the natting is happening in the router. Try pinging the internet keeping routers switch facing interface as source.

 

Check show ip nat translations.

Please do not hesitate to click the STAR button if you are satisfied with my answer.

show ip nat translations, empty, then i pinging 8.8.8.8

 

Hello,

 

do you actually have the two lines below in the configuration of your 2951 router ?

 

ip nat inside source list 1 interface GigbaitEthernet0/1 overload
!
access-list 1 permit 192.168.0.0 0.0.255.255

Thanks very very much, it works now