When modules ipx and ncpfs are not compiled in the kernel, they need
to be loaded during the init scripts.

The network init script (/etc/rc.d/init.d/network) is attempting to do
things with ipx, and fails due to the modules not being loaded.

For info, here are the lines I've added in my /etc/rc.d/rc.sysinit - I'm
sure this is the "wrong" way of doing it, but it does the job for me... ;)

# Load Netware modules if required
alias=`egrep -s "^alias[[:space:]]+nw_net[[:space:]]+" /etc/conf.modules |
awk '{print $3}'`
if [ -n $alias -a $alias != "off" ] ; then
   action "Loading $alias module" modprobe $alias
fi
alias=`egrep -s "^alias[[:space:]]+nw_fs[[:space:]]+" /etc/conf.modules |
awk '{print $3}'`
if [ -n $alias -a $alias != "off" ] ; then
   action "Loading $alias module" modprobe $alias
fi

Of course I have added the following two lines to /etc/conf.modules:
alias nw_net ipx
alias nw_fs ncpfs

Hope I haven't made a fool of myself... :(