This is taken from the end of /var/log/messages:
ifup-ppp: pppd started for ppp0 on /dev/ttyS2 at 38400
pppd 2.4.0 started by root, uid 0
using interface ppp0
local IP address 10.64.64.64
remote IP address 10.112.112.112
terminating on signal 15
Exit
modprobe: can't locate module ppp0
I'm running RedHat 7.0 with kernel 2.4.2. PPP stuff is all compiled into the kernel (ie not as modules). I've upgraded PPP and modutils (to meet the requirements in the ppp section of /usr/src/linux/Documentation/Changes). I don't understand what modprobe is... I thought it loaded kernel modules (but ppp0 is not a kernel module). I've updated a few other packages (as instructed to in the documentation with the new kernel). Let me know if you need a complete list. Any help would be greatly appreciated