My update config of Router 2514

[mlien]

Hi Wybnormal, I am really appreiate your help. I use "tracerT" command in DOS prompt to find out what my 1st hop is. It's 24.108.33.1, the IP default-gateway. I tried to ping Cisco, Mircosoft, and even my own ISP. The first on alwasy goes to 24.108.33.1 I double check the IP address and Subnet mask from my PC using "winipcfg" command.I can ping everywhere inside my network, but not outside through E0 port. I have two router and 1 switch and 1 hub. 2514 router use to connect directly to cable modem with Ethernet0. Serial0 connect to 2501's Serail1. Ethernet1 connect to Switch, and 2501's E0 to Hub. I only have one client(PC) for now. I used static address connect to my switch, because I don't know how to setup the DHCP server in the router. The thing is, I can't ping any outside address. I even tried to ping the default gateway 24.108.33.1 Doesn't work either. I think my cable modem is active device. It's Motorola CyberSURFR modem. I am kind of run out of idea, because I am no expert on Cisco device. Anyway, I updated my configuration.
Current configuration:
!
version 11.2
no service password-encryption
no service udp-small-servers
no service tcp-small-servers
!
hostname Router
!
!
ip nat inside source list 1 interface Ethernet0 overload
!
interface Ethernet0
(Direct 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 Router 2501)
ip address 192.168.1.17 255.255.255.240
no fair-queue
clockrate 56000
!
interface Serial1
no ip address
shutdown
!
ip classless
ip route 0.0.0.0 0.0.0.0 24.108.33.1(ip default gateway)
access-list 1 permit 192.168.1.0 0.0.0.255
!
!
line con 0
line aux 0
line vty 0 4
login
!
end
I don't know, Do you think shall put the NAT on S0, becasue it connect to my 2501 router.

Thanks again for your generous advice

 

[SocialD]

Milen I was having the same problem you where. I found that if you use the default gateway of interface E1 on your pc which would be 192.168.1.65. It should connect to internet and make sure you have your dns servers setup on your pc. I have almost the same config as you but only have one 1605 router with two ethernet ports and 1 serial and a switch between my computers on the other side of router. If you can ping inside network but not ping past default gateway try this it worked for me.
SocialD

 

[wybnormal]

Here is something I found looking for info the "modem". It may be the magic bullet and I remembered after reading that a friend had this same problem.
Mike

-------cable notes from the web site of:

http://www.oswg.org/oswg-nightly/oswg/en_US.ISO_8859-1/articles/Cable-Modem/Cable-Modem.html

--------- end of web address

If you have a Motorola CyberSurfr cable modem you will need to press the reset key on the back of the modem if you switch network cards. The ethernet card hardware address is read by the modem and once it is setup if the card is switched it must be reset.Just press the reset key for 10+ seconds and it will reread.

If you are still not able to get your cable connection going check out mini-HOWTO for cable modems and Cox@Home at

http://www.kernel-panic.com/user_files/cox.at.home.html

Update from James Stormes <jstormes@gtfcu.com>

@Home has been upgrading the cable modem system in Bedford Texas (the area around Dallas Texas). I have found that with the new system your NIC's MAC address must match what the cable system has. That is the Linux system you plug into the cable modem must use the same MAC that is programmed into the board you got from @Home. I use two diffrent computers on the cable modem (Linux and Windows) so this was a problem.