Yamaha RTA 50i with RedHat 7.0

["junkyard boyoy" <clan_bd2@example.com>]

I've been able to connect to the internet through the "Kantan Settei" page 
using my Yamaha RTA 50i router.  What I want to do, though, is connect 
through the serial port (just like the MS Windows' Dial-up Networking) on 
RedHat 7.0.  I tried the RPHPPP utility included with GNOME to try setting 
up my router, but failed.  It seems to be "interacting" with the router 
(gives a log in the "debug" section), but doesn't seem to connect to my ISP. 
  Any clue as to why my router won't connect?  Thanks in advance!
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