IP Masquerade

Hello friends

I am using Redhat Linux Server 9.0

My eth0 IP : 172.100.100.43

I have configuring IP Masquerade

[root@localhost root]# iptables -t nat -P POSTROUTING DROP

[root@localhost root]# iptables -t nat -A POSTROUITNG -o eth0 -j MASQUERADE

iptables: No chain/target/match by that name

[root@localhost root]#

Whether If any faults in command.

Please reply.

Thank You