Can't connect to internet though Link is up

[Edward]

Parameshwara Bhat wrote:
> Hello All,
> 
> This is not exactly a Fedora issue.But knowledgeable on linux can help me.

This REALLY should not be on a Fedora list. I feel strongly about the 
fact that you are using something that's not Fedora, but instead of 
asking the Live CD distro community for help, you come here. It is wrong.

Having said that, I'll give it a go.

> 
> I was trying a Live CD distro.I could set my ADSL connection on it fine.I
> can see with 'ifconfig' the link 'ppp0' and can ping to both local and
> remote IPs listed there.'pppd' is constantly running.
> 
> But I can't connect to internet,even as root.

I don't understand you. You say you can ping remote addresses, but you 
cannot connect to the Internet?

Pinging remote addresses is the same as pinging the Internet. If you can 
do it, you are connected as far as I am concerned.

I have checked through pppd
> options and removed any settings that looked suspicious(rolled back). What
> is standing between browser and kernel(network route)? How can I know?

If you can ping IP addresses, but not FQDNs on the Internet, then your 
DNS could be the culprit.

Regards,
Ed.