Failed to activate ppp0 with error 2, 6 or 8

[Phil Meyer]

jakubi wrote:
> I get these error messages:
>
> "Failed to activate ppp0 with error 2"
>   
no such device
> on boot,
>
> "Failed to activate ppp0 with error 8"
>
> from /sbin/ifup ppp0, when connection is off, and
>
> "Failed to activate ppp0 with error 6"
>
>   
these indicate script failure before CONNECT
> when conection is on.
>
> I have an external serial modem, and I can connect with KPPP, but the firewall Firestarter does seem to have a conflict with this ppp0 issue. Eg. an error message like:
>
> "Starting the Firestarter: ppp0: error fetching
> interface information"
>
> appears on boot.
>
> What is the origin of this problem? How to solve it?
>
> Regards, Alejandro
>
>
>   
You need to watch /var/log/messages.

I assume that you tried to set up ppp using system-config-network or one 
of the KDE tools.

There are two distinct pieces of Fedora ppp.  To start, use the wvdial 
command to test your dialup settings in /etc/wvdial.conf.

# wvdial ppp0

This will show you what its trying to do.
Make changes to /etc/wvdial.conf until this part works.

Next, use system-config-network to edit your ifconfig script, or edit it 
by hand.

# vi /etc/sysconfig/network-scripts/ifcfg-ppp0

Use two terminals to test your ifconfig script:  first one: tail -f 
/var/log/messages and second one: ifup ppp0

You will get it.