The first ip is their right? if so you can do this.
This will remove all ip's except the base ip so if you have ip's that are allready their skip step 1 and 2
1. rm -f /etc/ips
2. touch /etc/ips
3. for i in `seq 2 126`;do echo &10.10.10.$i& && /etc/ips;done
4. /etc/init.d/ipaliases restart
That should do it.
Just to be safe you may want to just move /etc/ips to /etc/ips-old
mv /etc/ips /etc/ips-old
*note - make sure you replace 10.10.10 with the first three octls of your ip....