cancel
Showing results for 
Search instead for 
Did you mean: 
cancel
7933
Views
10
Helpful
16
Replies

connected two routers together, but can't connect internet from second router

David H Lee
Level 1
Level 1

hello all! With help from other network gurus, I was able to configure my 1841 router and 1142N AP, and they are running pretty well now. So, as for my next challenge, I decided to connect two 1841 routers together, and with Cisco book's help, I was able to ping each other. However, I can ping between two routers, but can't ping anything outside of network, I.e any internet sites. Two routers are connected with serial port, and Eigrp is the protocol I used to connect two routers, and the first router is directly connected to cable modem. Do I have to add first router's routing table? or NAT trans pool?  thank you in advance. 

16 Replies 16

thank you for your answer. I forgot to mention that two routers are connected via T-1serial port. Also, now I have question that why Serial ports don't get DHCP address? what did I do wrong? is that because I used RJ45 cable with it instead of serial cable? thank you again!

Hello. this is current configuration of my routers. 

Router 1 config:


interface Loopback0
 ip address 1.1.1.1 255.255.255.0
!
interface FastEthernet0/0
 ip address dhcp
 ip nat outside
 ip virtual-reassembly in
 duplex auto
 speed auto
!
interface FastEthernet0/1
 ip address 192.168.0.1 255.255.255.0
 ip nat inside
 ip virtual-reassembly in
 duplex auto
 speed auto
!
interface Serial0/0/0
 description Link to Router2
 ip address 10.0.0.2 255.255.255.252
!
ip forward-protocol nd
ip http server
ip http port 2000
ip http secure-server
ip http path flash:
!
!
ip nat inside source list 101 interface FastEthernet0/0 overload
ip nat inside source static tcp 192.168.0.6 85 interface FastEthernet0/0 85
ip nat inside source static tcp 192.168.0.6 2000 interface FastEthernet0/0 2000
ip nat inside source static tcp 192.168.0.6 8000 interface FastEthernet0/0 8000
ip nat inside source static tcp 192.168.0.6 8001 interface FastEthernet0/0 8001
ip nat inside source static tcp 192.168.0.6 34599 interface FastEthernet0/0 34599
ip nat inside source static tcp 192.168.0.6 34567 interface FastEthernet0/0 34567
ip nat inside source static tcp 192.168.0.6 554 interface FastEthernet0/0 554
ip route 0.0.0.0 0.0.0.0 FastEthernet0/0
!
access-list 101 permit ip 192.168.0.0 0.0.0.255 any
!

Router 2

ip dhcp pool LOCAL1
 network 192.168.10.0 255.255.255.0
 default-router 192.168.10.1
 dns-server 8.8.8.8
!


!
!
!


!
!
!
!
!
!
!
interface Loopback2
 ip address 2.2.2.2 255.255.255.255
!
interface FastEthernet0/0
 ip address 192.168.10.1 255.255.0.0
 ip access-group 101 out
 duplex auto
 speed auto
!
interface FastEthernet0/1
 no ip address
 shutdown
 duplex auto
 speed auto
!
interface Serial0/0/0
 description Link to Router1
 ip address 10.0.0.2 255.255.255.252
 ip access-group 101 out
!
!
router eigrp 100
 network 0.0.0.0
!
!
!
ip forward-protocol nd
ip http server
ip http port 2000
ip http secure-server
!
!
ip nat inside source list 101 interface Serial0/0/0 overload
ip route 0.0.0.0 0.0.0.0 Serial0/0/0
!
access-list 101 permit ip 192.168.10.0 0.0.0.255 any

then, here is IP route on Router2


Gateway of last resort is 0.0.0.0 to network 0.0.0.0

S*    0.0.0.0/0 is directly connected, Serial0/0/0
      1.0.0.0/24 is subnetted, 1 subnets
D        1.1.1.0 [90/2306560] via 10.0.0.1, 01:32:39, Serial0/0/0
      2.0.0.0/32 is subnetted, 1 subnets
C        2.2.2.2 is directly connected, Loopback2
      10.0.0.0/8 is variably subnetted, 2 subnets, 2 masks
C        10.0.0.0/30 is directly connected, Serial0/0/0
L        10.0.0.2/32 is directly connected, Serial0/0/0
     ISP address is subnetted, 1 subnets
D        ISP address via 10.0.0.1, 01:32:39, Serial0/0/0
C     192.168.0.0/16 is directly connected, FastEthernet0/0
D     192.168.0.0/24 [90/2181120] via 10.0.0.1, 01:32:39, Serial0/0/0
      192.168.10.0/32 is subnetted, 1 subnets
L        192.168.10.1 is directly connected, FastEthernet0/0

I think I'm half way there, but still can't see anything on internet browser. any help will be appreciated greatly. thank you