No Internet Access Cisco Router

[finsfree]

I have a Cisco 1841 router.

The router's internal port (fa 0/1) is configured with a 10.10.10.1/24 and the external port (fa 0/0) is configured DHCP (get an IP from ISP).

After plugging in my laptop into port fa 0/1, I can not get internet access. My laptop has an IP address if 10.10.10.3/24. Right now I'm just trying to ping 8.8.8.8 (google.com). Both the interfaces are up with the "No Shut" command. I am receiving an IP address from my ISP, so I know it is working. I can ping the router's internal and external IP address.

What am I doing wrong? I have a good concept of computer networking, but I've just never used Cisco's equipment yet. All of the link lights are on (FDX, 100 & Link).

Thanks,

P.S. I figured since this is very basic you guys should be able to help. I just need internet access for now.

 

[beers]

You need a NAT Overload statement in order to port forward your LAN addresses behind the outside interface.

You'd also need a clause to add the gateway address obtained from DHCP as the default route.

int fa0/1
ip nat inside
int fa0/0
ip nat outside

access-list 100 remark == [Control NAT Service]==
access-list 100 permit ip 10.0.0.0 0.255.255.255 any

ip nat inside source list 100 interface fa 0/0 overload

ip route 0.0.0.0 0.0.0.0 dhcp

Edit: You likely also want to configure an ACL to limit telnet access and similar from the outside.

line vty 0 15
access-class 100 in

 

[finsfree]

Thanks you sir!

After a couple of youtube.com videos I got it to work perfectly.

FYI, I bought this old cisco router and switch online for like cheap and after doing a speed test w/ speedtest.net and speakeasy my speeds are the same. I was expecting a drop in speed. I'm getting 90MB down & 12MB up. Pretty freaking cool!

Devices:
1. Cisco 1800 Router IOS version 12.4
2. Cisco catalyst 3560 PoE-8 switch IOS version 12.2

 

[beers]

I was expecting a drop in speed.

but why

 

[finsfree]

I just figured because it was old equipment compared to my newer networking devices. I bought these devices for training.

My current network consist of a Zyxel USG 20 w/ Netgear AP (802.11ac). I thought for sure replacing these devices with old cisco 10/100MB stuff was going to degrade my network and internet speed, but I was wrong. I may just use it for good This sh@t is awesome!!!