question about demand dialing with diald

[Michael Slack <mslack@xxxxxxxxxxxxx>]

I have configured demand dialing running diald, and it works, sort of, but I 
am having a problem.  The script /etc/rc.d/init.d/diald runs when I boot, and 
demand dialing works until idle timeout, when it disconnects as expected.  
However, the next time I start a tcp communication, there is no response.  If 
I run "/etc/rc.d/init.d/diald start" it works fine again, until it times out, 
and then the same problem again.  Here is my script:

#!/bin/sh

# Source function library. 
. /etc/rc.d/init.d/functions

# Source networking configuration. 
. /etc/sysconfig/network

# Check that networking is up. 
[ ${NETWORKING} = "no" ] && exit 0

[ -f /usr/sbin/diald ] || exit 0

[ -f /etc/diald.conf ] || exit 0

# See how we were called. 
case "$1" in
   start)
 	# Start daemons.
 	echo -n "Starting demand dialing: "
 	echo 1 > /proc/sys/net/ipv4/ip_dynaddr
 	daemon /usr/sbin/pppd call ameritech
 	sleep 3
 	/sbin/route del default
 	/sbin/route add default ppp0
 	;;
   stop)
 	# Stop daemons.
 	echo -n "Shutting down demand dialing: "
 	/etc/ppp/ppp-off
 	;;
   restart)
        $0 stop
 	$0 start
 	;;
   status)
 	status diald
 	;;
   *)
 	echo "Usage: diald {start|stop|restart|status}"
 	exit 1 esac

 exit 0 

Any suggestions?

Mike