iptables에서 다음과 같은 에러가 났어요 ㅡ.ㅡ;

로그와치가 다음과 같은 메일을 보냈습니다.

From root@xxx.net Tue Dec 16 00:01:00 2003
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From: root@xxx.net (Cron Daemon)
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Subject: Cron <root@xxx> /sbin/service iptables restart >/dev/null
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modprobe: Can't locate module ip_tables
iptables v1.2.7a: can't initialize iptables table `filter': iptables who? (do you need to insmod?)
Perhaps iptables or your kernel needs to be upgraded.
modprobe: Can't locate module ip_tables
iptables v1.2.7a: can't initialize iptables table `filter': iptables who? (do you need to insmod?)
Perhaps iptables or your kernel needs to be upgraded.
modprobe: Can't locate module ip_tables
iptables-restore v1.2.7a: iptables-restore: unable to initializetable 'filter'

Try `iptables-restore -h' or 'iptables-restore --help' for more information.

무엇이 잘못 된 것일까요?

service iptables restart 하면 실패라는 메시지만 뜹니당 ㅠ.ㅠ

커널 컴팔한 후에 이런데 커널에서 어떤걸 모듈로 추가해야 하나요?