Update of my config of my 2514 router behind cable modem

[mlien]

Hi everyone, I still can't get my router working with cable modem. Here is my new configuration after I took wybnormal's advice. There is problem with the default route. Becasue i don't know what's appropriate "hop", so I took the"ip default-gateway" listed on my "winipcfg" of my computer. I don't really know what else shall I do. Because I think this configuration shall be working. The following is my new config:
Current configuration:
!
version 11.2
no service password-encryption
no service udp-small-servers
no service tcp-small-servers
!
hostname Router
!
!
!
interface Ethernet0
(connect to cable modem)
ip address 24.108.**.** 255.255.255.0
no ip directed-broadcast
ip nat outside
no cdp enable
!
interface Ethernet1
(connect to switch)
ip address 192.168.1.65 255.255.255.240
ip nat inside
!
interface Serial0
(connect to Cisco router 2501)
ip address 192.168.1.17 255.255.255.240
ip nat inside
no fair-queue
clockrate 56000
!
interface Serial1
no ip address
shutdown
!
router rip
network 192.168.1.0
!
ip classless
(use defautl-gateway ip address)
ip route 0.0.0.0 0.0.0.0 24.108.33.1
!
!
line con 0
line aux 0
line vty 0 4
login
!
end

Thanks all.

 

[wybnormal]

You've changed a couple of things I think..

lost an important line...

ip nat inside source list 1 interface Ethernet0 overload

And the access list that went with it. I had marked those as fine.

You've added(?) nat inside to the serial link..why?

RIP is still there.. why?

If the PC's gateways works with the 24.108.33.1, it should work with the router. Unless.. and here is a thought.. the "cable modem" is something active instead of passive like a good many are. Most are a bridge or media converter to put it another way and are a passive device. If your is an active device, it could put a crimp into things.

If you have the router installed and you console in, have you tried a extended ping yet? Type in PING at the # prompt and as you work way through the various prompts, one is which port or IP do you want the ping to go out of. Can you ping anything from the router's E0 port through the cable modem? I am amssuming you gave E0 the same IP as the PC that was working on the cable modem? If not, change it to match that. NAT will still overload that IP just fine.

To find the real gateway.. hook the cable modem back to the PC and make sure it's working.. then run a traceroute to something.. anything.. look at the first hope away from your PC.. thats the gateway you need to talk to.

Dont give it up yet.. we still have tricks to play on the cable company

Mike S