PPP not working ? Why ?

[Botoaca Andrei]

Ok, what i did, since there was no driver for my modem under kernel 2.6 yet 
... (Fedora Core 2). I cooked myself a rpm called kernel-old and nou I have 
to kernels 2.6.x and 2.4.22. Everything works ok, single problem is, that 
upon dialing up my internet provider, i conect, get ip assigned, get dns 
everything ok ... but the internet does not work ... if i ping myself OK, if 
i ping the Remote machine, OK, everything else does not work. (It looks like 
i have no DNS Server...). And that is only when i boot the 2.4.22 kernel (on 
the 2.6.x i don't know since i can't make the modem work).
Any ideea why ? Does the kernel have a relation with the PPP dial-up thingie 
?

Thanks
Andrei

PS: I'm running KDE and using KPPP to connect ...

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