Re: Cisco 1750 Config...

In article <1133205648.472358.72670@xxxxxxxxxxxxxxxxxxxxxxxxxxxx>,
jsandlin0803 <jason.sandlin@xxxxxxxxxxxx> wrote:
:Ok, here is my config. Tell me what is wrong. I cannot ping internet
:from the router.

>no ip routing

Why do you have ip routing turned off when you are expecting your
router to route your ping packages to the internet ?


>interface Serial0
> description connected to Internet
> ip address 162.40.xxx.x 255.255.255.248
> encapsulation ppp
> no ip route-cache
> service-module t1 remote-alarm-enable

Is there a particular reason you turned off ip route-cache? You do not
appear to be doing per-packet load balancing, and you do not appear
to have multiple connections to the same interface, and you probably
aren't running low on memory.

http://groups.google.com/group/comp.dcom.sys.cisco/msg/41b124ef2dd6b639


>interface FastEthernet0
> description connected to EthernetLAN
> ip address 192.168.xx.x 255.255.255.0
> no ip route-cache
> speed auto

Again, why have you turned off ip route-cache?

I also notice that your FastEthernet0 interface has an RFC1918 reserved
IP address, and that you have no set up any routes to send any
public IP space through the FastEthernet0 link to a deeper router
(or firewall). If you were to turn on ip routing, your internal packets
would leave the router towards the internet, but nothing would be
able to reply because they wouldn't be able to find 192.168.xx.x to
get back to.

You need to do one of three things:
a) Use a public IP space on your FastEthernet0 interface (and internally);
b) route a public IP space to a deeper router/firewall; or
c) set up the FastEthernet0 as a nat inside and the Serial0
interface as a nat outside in order to translate your RFC1918 private IPs
into a public IP as they go out of the router.
--
"law -- it's a commodity"
-- Andrew Ryan (The Globe and Mail, 2005/11/26)
.

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