there is no rc.network in 5.1-RELEASE
there is    rc.network in 4.8-RELEASE

The berklix 4.8 hosts dont have this in, I'm doing it there from /etc/rc.local
This below is just in case I forget, but it doesnt apply on 5.* anyway,
so best phased out

4.11 has no rc.network

*** 4.1.1/src/etc/rc.network	Wed Aug 30 14:55:36 2000
--- jhs/src/etc/rc.network	Mon Apr 22 14:51:07 2002
***************
*** 405,410 ****
--- 405,415 ----
  }
  
  network_pass2() {
+ 	if [ -e /site/domain/init ]; then
+ 		echo -n 'Doing /site/domain/init:'
+ 		/site/domain/init
+ 		fi
+ 
  	echo -n 'Doing additional network setup:'
  	case ${named_enable} in
  	[Yy][Ee][Ss])