iptables v1.4.10：無法初始化 iptables 表`NAT’：表不存在

xxx:~# iptables -t NAT -A PREROUTING -d xxx.xxx.xxx.xxx -j DNAT --to-destination 10.0.1.2
WARNING: All config files need .conf: /etc/modprobe.d/bad_list, it will be ignored in a future release.
WARNING: All config files need .conf: /etc/modprobe.d/blacklist, it will be ignored in a future release.
iptables v1.4.10: can't initialize iptables table `NAT': Table does not exist (do you need to insmod?)
Perhaps iptables or your kernel needs to be upgraded.

xxx:~# uname -a
Linux xxx.server4you.net 2.6.38-2-amd64 #1 SMP Tue Mar 29 16:45:36 UTC 2011 x86_64 GNU/Linux

以前的核心是2.6.32，iptables 1.4.2，問題是一樣的。目前核心是從原始碼手動建構的。

它區分大小寫。

它應該是

iptables -t nat -A PREROUTING -d xxx.xxx.xxx.xxx -j DNAT –to-destination 10.0.1.2

引用自：https://serverfault.com/questions/256481