I just installed Slack 13. I'm reading the slack book. (Slack is pimp.) I'm looking in rc.d directory and don't see any rc.netdevice. I also see no module uncommented in rc.modules. I use tulip driver for my network card. Could it be that tulip was included in the kernel upon installation?? Sorry if I sound stupid. Just can't figure out how the damn thing works. What am I missing here?

Welcome to LQ.

tulip is configured as a module in all Slackware 13 kernels, if not loaded ('lsmod|grep tulip' will tell you) try to load it manually (as root: 'modprobe tulip'); if it works uncomment the line beginning with #/sbin/modprobe/tulip in /etc/rc.d/rc.modules so it be automatically loaded at next boot.

There is no need for any rc.netdevice file in rc.d (the book your are reading may be old ?)

To set up your connection, if your network card's interface name is eth0, just use the "netconfig" utility as root and you are done.
Else edit the file /etc/rc.d/rc.inet1.conf accordingly; make sure /etc/rc.d/rc.inet1 is executable and run it (as root: "chmod +x etc/rc.d/rc.inet1" then "/etc/rc.d/rc.inet1 start"). You'll find all needed explanations in Alien BOB's excellent article
http://alien.slackbook.org/dokuwiki/...ckware:network

Some things have changed since the last update of the slackware book.

For allot of hardware, udev loads the correct modules. Most of the times rc.netdevice or rc.modules aren't needed anymore.