Newcomers to PPP should 1st read 
        http://metalab.unc.edu/LDP/HOWTO/PPP-HOWTO.html

Also do:
    setserial -agv /dev/ttyS*
To get diagnostic info like:

/dev/ttyS0, Line 0, UART: 16550A, Port: 0x03f8, IRQ: 4
        Baud_base: 115200, close_delay: 50, divisor: 0
        closing_wait: 3000, closing_wait2: infinte
        Flags: spd_normal skip_test session_lockout

/dev/ttyS2, Line 2, UART: unknown, Port: 0x03e8, IRQ: 4
        Baud_base: 115200, close_delay: 50, divisor: 0
        closing_wait: 3000, closing_wait2: infinte
        Flags: spd_normal skip_test

/dev/ttyS3, Line 3, UART: unknown, Port: 0x02e8, IRQ: 3
        Baud_base: 115200, close_delay: 50, divisor: 0
        closing_wait: 3000, closing_wait2: infinite

You want to choose a port ( /dev/ttyS?) which has a UART: 16550A or
16550
for the PPP protocol.

Do:
    cat  /proc/interrupts
to get diagnostic info on your interrupt usage:
 0:    1824264   timer
 1:       5137   keyboard
 2:          0   cascade
 3:      78609 + serial
 4:     159709 + serial
 7:          2   i82365
 8:          2 + rtc
13:          1   math error
14:      13410 + ide0
15:         23 + ide1

MarvS
=====================================
        
>Jeff Stahl wrote:
> 
> Does anyone know how to get a 3Com 3cxem556 Lan/Modem card to work under
> RedHat linux 5.1?  I have an Inspiron 3200 with a 266 PII, 6.4 Gb HDD,
> TORiSAN DVD, 80 MB RAM.  I'm having all sorts of trouble!  Any help at all
> would be GREATLY appreciated!!!!
> 
> Thanks in advance,
> Jeff Stahl
> 
> ----- Original Message -----
> From: Kevin Long <[EMAIL PROTECTED]>
> To: <[EMAIL PROTECTED]>
> Sent: Tuesday, December 15, 1998 12:50 PM
> Subject: Re: is the list dead?
> 
> >I hope it's working...
> >
> >If it is...  Can anyone help with RedHat 5.2 on an Inspiron with a 3x589
> >Ethernet card?
> >
> >Kevin
> >
> >
> >---
> >  http://nts.ml.org
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> >
> >
> 
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