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How to create non-routable IP addresses with Cisco 1840 Router?

Posted on 2009-04-04
3
1,038 Views
Last Modified: 2012-05-06
I have a Cisco 1840 router that I run my T1 connection to.  I need to get the client computers to be able to use the T1 connection and I think I need non-routable ip addresses, but I don't know how to do so.  Could someone please explain to me what exactly to do.  I can get into the router through hyperterminal and config whatever I need, I just don't know what to config.

Thanks.

Here's my current configuration:

Current configuration : 1694 bytes
!
version 12.4
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname u255009
!
boot-start-marker
boot-end-marker
!
enable password cisco
!
no aaa new-model
ip cef
!
!
no ip dhcp use vrf connected
!
ip dhcp pool gt
   import all
   network 65.246.8.244 255.255.255.252
   default-router 65.246.8.245
   dns-server 198.6.1.1
   lease 10
!
!
ip domain name ALTER.NET
ip name-server 198.6.100.38
ip name-server 198.6.1.1
ip name-server 198.6.1.2
ip name-server 198.6.1.38
!
!
!
!
!
interface FastEthernet0/0
 ip address 65.246.8.245 255.255.255.252
 speed 100
 full-duplex
!
interface FastEthernet0/1
 no ip address
 shutdown
 duplex auto
 speed auto
!
interface Serial0/0/0
 bandwidth 1536
 no ip address
 no ip redirects
 no ip proxy-arp
 encapsulation frame-relay IETF
 no fair-queue
 service-module t1 timeslots 1-24
 frame-relay lmi-type ansi
!
interface Serial0/0/0.500 point-to-point
 ip unnumbered FastEthernet0/0
 no cdp enable
 no arp frame-relay
 frame-relay interface-dlci 500 IETF
!
interface Dialer0
 ip address negotiated
 encapsulation ppp
 dialer pool 1
 ppp authentication chap
!
ip route 0.0.0.0 0.0.0.0 Serial0/0/0.500
!
!
no ip http server
no ip http secure-server
ip nat pool gt 10.2.1.1 10.2.2.1 netmask 0.0.0.255
ip nat inside source list 1 interface Dialer0 overload
!
!
!
!
control-plane
!
!
!
line con 0
 password cisco
 login
 transport preferred none
line aux 0
 password cisco
 login
 modem InOut
 transport preferred none
 transport input all
 transport output all
 stopbits 1
 flowcontrol hardware
0
Comment
Question by:gzarnick
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3 Comments
 
LVL 2

Expert Comment

by:vaiha
ID: 24068696
Does your basic internet connectivity from the client computers work ?
0
 
LVL 5

Author Comment

by:gzarnick
ID: 24069187
I can't connect to the Internet from client computers when I plug the router into the switch.  I get no addresses or connectivity.
0
 
LVL 2

Accepted Solution

by:
vaiha earned 500 total points
ID: 24072328
Ok, I have no idea how is your network supposed to be like.
But what I can tell from the config is that there are a few problems with it.

1)
ip nat pool gt 10.2.1.1 10.2.2.1 netmask 0.0.0.255
and
ip dhcp pool gt
   import all
   network 65.246.8.244 255.255.255.252
   default-router 65.246.8.245

2)
ip nat inside source list 1 interface Dialer0 overload
and
ip route 0.0.0.0 0.0.0.0 Serial0/0/0.500

3)
interface FastEthernet0/0
 ip address 65.246.8.245 255.255.255.252

Maybe if you could explain how are the cables connected to the router & ip addressing, or could you explain what are you trying to achieve with some sort of a network diagram?

Hope it helps.


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