Help connecting with earthlink

[Obi <graziano@cs.ucsd.edu>]

hello,

I'm trying to setup my linux box to connect to earthlink, but with no luck.
I've done that quite a few times with different ISPs, but this time I cannot
set it up. 

It works fine under windows98, but under linux no. This is the important part
of the log:
Mar 17 15:08:08 harp pppd[1139]: Using interface ppp0
Mar 17 15:08:08 harp pppd[1139]: Connect: ppp0 <--> /dev/modem
Mar 17 15:08:39 harp pppd[1139]: LCP: timeout sending Config-Requests
Mar 17 15:08:39 harp pppd[1139]: Connection terminated.
Mar 17 15:08:39 harp pppd[1139]: Hangup (SIGHUP)

Should I set some CHAP/PAP things? Can you help?

thanks
graziano

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