The script:
/etc/rc.d/init.d/network is missing a pipe.
This causes the script not to work, and network interfaces are not started.

Here is a diff to correct the problem:
--- network.old Sat Jan 27 17:27:18 2001
+++ network     Sat Jan 27 17:27:37 2001
@@ -35,7 +35,7 @@
 # find all the interfaces besides loopback.
 # ignore aliases, alternative configurations, and editor backup files
 interfaces=`ls ifcfg* | egrep -v '(ifcfg-lo|:|rpmsave|rpmorig|rpmnew)' | \
-           egrep -v '(~|\.bak)$' \
+           egrep -v '(~|\.bak)$' | \
             egrep -v 'ifcfg-ippp[0-9]+$' | \
             egrep 'ifcfg-[a-z0-9]+$' | \
             sed 's/^ifcfg-//g'`