xcat-core/xCAT-nbroot2/dhclient-script

#!/bin/dash
if [ $reason = "PREINIT" -o $reason = "PREINIT6" ]; then
	ip link set $interface up
	while ! (ip link show $interface|grep LOWER_UP > /dev/null 2>&1); do
		sleep 0.1
	done
elif [ $reason = "BOUND" ]; then
	if [ ! -z "$new_ip_address" -a ! -z "$new_subnet_mask" ]; then
		ip addr add dev $interface $new_ip_address/$new_subnet_mask
	fi
	if [ ! -z "$new_host_name" ]; then
		hostname $new_host_name
		lldptool -T -i $interface -V 5 enableTx=yes
	fi
	if [ ! -z "$new_domain_name" ]; then
		echo search $new_domain_name >> /etc/resolv.conf
	fi
	for ns in $new_domain_name_servers; do
		echo nameserver $ns >> /etc/resolv.conf
	done
	for ntp in $new_ntp_servers; do
		echo server $ntp >> /etc/ntp.conf
	done
	for gw in $new_routers; do
		ip route add default via $gw
	done
elif [ $reason = "BOUND6" ]; then
	if [ ! -z "$new_ip6_address" ]; then 
		ip addr add dev $interface $new_ip6_address/$new_ip6_prefixlen
	fi
fi