The performance (speed) and the reliability of the connection with my kppp was much improved after I upgraded from RH5...

Strona startowa Ludzie pragną czasami się rozstawać, żeby móc tęsknić, czekać i cieszyć się z powrotem.swiadkowie bozego milosierdzia- Ostatnim etapem mojego planu jest wylanie mojego miłosierdzia na was wszystkich...gegen alles, was Menschen heilig zu sein vermag, in das Feld zogen, Staat und Regierung in der infamsten {267 Die "anständige" Presse} Weise angriffen...1981 114 Nazwa programu KARMANIOLA Ile wściekłości trwoga w was zajadła Potrafi ciągle z ludzkiej dobyć mowy A wszak Bastylia...you carried away?16:11 How is it you do not understand that it was not aboutbread that I spoke to you? But beware of the yeast of thePharisees and Sadducees...Powiedz, co się stało? Co oni zrobili z wami? Gdzie jest „Zielone Pudło”? Ograbili was i wy- gnali...Co do zdarzeń, na poziomie grupy, to nie mogę wam chyba powiedzieć nic, co miałoby dla was jakiekolwiek znaczenie...Nowhere among the German people was the opportunity for making such a study so favourable as in Vienna...The Server (Request Security) policy is used when you want to request IPSec security for all connections..."You know what they say afterwards," she was going on...say the weather was... 
 

Ludzie pragną czasami się rozstawać, żeby móc tęsknić, czekać i cieszyć się z powrotem.

2 to RH6.0. So if you have problems with these, maybe it is time to upgrade.
If you keep having problems setting up ppp, you may want to try minicom to see if you can get your modem working from there. minicom is something like PROCOMM for Linux. It should be present on your system if you chose to install it during your RedHat initial setup. Here is a post from a newsgroup comp.os.linux.help which explains how to start ppp manually using minicom (edited for space):
From: mark <balthazaar@one.net.au> Subject: Re: pppd problem with kppp
BachuZ wrote:
>>Also, for an experiment, try using minicom to connect to your ISP, start ppp manually ... this can prove buggy scripts. >how would u do that?
120
Easy!! If your ISP doesn’t allow a manual logon then you might be in trouble. Every ISP I’ve ever used does allow this, so.. 1. Start minicom. 2. dial your ISP. 3. Log in. 4. AFter your ISP
starts PPP, quit minicom with ALT-Q (or whatever the sequence is to ’quit without reset’). 5.
start pppd, eg:
pppd -d -detach /dev/modem 115200 &
OK, PPP will be running. Try pinging your ISP or another known IP address. That will test everything is OK. BTW, this is all in the PPP-HOWTO. If you can get PPP running this way, then you have a scripting problem. If PPP doesn’t work, you have a PPP configuration problem.
Cheers.

Command line. If you would like to start your ppp from the command line, run netconf (as root) to configure your first ppp interface (ppp0). The information you must enter is similar to what you entered when setting up kppp (have a look above!): the proper device for the modem port, modem initialization and dialup strings, the telephone number of your Internet Service Provider (ISP), the proper authentication protocol (by entering the login name and password into the right slot). In older versions, the netconf utility lacked a place to enter the IP addresses of my ISP DNS server, so I edited the file /etc/ppp/pap-secrets (I use PAP authentication protocol) and added the two DNS IP addresses at the end of the setup line which was created by netconf so it looked like this:
# added by linuxconf
my_login_name ppp0 my_password 111.111.111.111 222.222.222.222
When done with the settings, I could start my ppp0 interface using the command (as root, unless I specified in netconf that normal users can start the interface):
ifup ppp0
and shut it down with
ifdown ppp0
Setting up the command line ppp was not more difficult on my machine than running kppp and the connection is more reliable for me. There is lots of command line scripts to start/stop ppp, but they apparently are not so easy to set up and use, and many newbies seem to have problems with them.
If this minimalistic setup of ppp does not work for you, here are some useful links: Roderick A. Anderson < raanders@altoplanos.net > wrote:
I have a web page on setting up diald to work with RedHat Linux 5.x that works for me every
time. It is at http://home.altoplanos.net/~raanders/diald.html

Bill Unruh < unruh@physics.ubc.ca > wrote:
121
I just wanted to bring your attention to the page http://axion.physics.ubc.ca/ppp-linux.html for
detailed instructions for setting up ppp. This is especially for cases in which the remote side uses (perhaps without the ISP even telling you) PAP or CHAP. While kppp is useful, there are a number of situations where it can fail.
4.5.4 How to browse the net from my networked computer without a
modem?
Another computer on your network must have a modem (or another Internet connection) though
:-). Set up IP masquerading. This way, all requests going from your network to your Internet Service Provider (ISP) appear to have originated from a single computer, and your ISP will let them through.
ON REDHAT 5.2, simple masquerading required just one command (on the computer with the modem):
/sbin/ipfwadm -F -p m